Understand the common causes of dizziness, recognise warning signs and learn when a GP assessment may be appropriate.

Medically Important Information

This article is intended for general educational purposes only and should not replace an individual consultation with a qualified healthcare professional.

Feeling dizzy is a common symptom and, in many cases, is not caused by a serious medical condition. However, dizziness can have many different causes, ranging from temporary problems to conditions that require medical assessment.

If your dizziness is persistent, keeps returning, becomes worse or is accompanied by other concerning symptoms, you should seek medical advice.

If you develop sudden dizziness together with chest pain, severe shortness of breath, weakness affecting one side of the body, difficulty speaking, loss of consciousness or another suspected medical emergency, call 999 or attend your nearest Emergency Department immediately.

“For people experiencing dizziness in Richmond, understanding when symptoms need a GP assessment can provide reassurance and help identify the underlying cause

Quick Summary

If you only have one minute, here are the key points:

• Dizziness is one of the most common reasons people visit a GP.
• Most episodes are not caused by a serious medical condition.
• Common causes include dehydration, inner ear disorders, medication side effects, low blood pressure, migraine and anxiety.
• Persistent, recurrent or unexplained dizziness should always be assessed.
• Your GP will identify the underlying cause before recommending treatment.
• Blood tests, heart investigations or specialist referral are only arranged when clinically appropriate.
• Some symptoms occurring alongside dizziness require immediate emergency assessment.

At a Glance

Question	Answer
Is dizziness common?	Yes. It is one of the most common symptoms seen by GPs.
Is dizziness usually serious?	No. Most cases are not caused by a serious illness.
Should persistent dizziness be ignored?	No. Persistent or changing dizziness should always be assessed.
Will everyone need blood tests?	No. Investigations are only recommended when clinically appropriate.
Who should I see first?	A GP is usually the most appropriate healthcare professional to assess dizziness.

📌 Important to Remember

Dizziness is a symptom, not a diagnosis.

Many different medical conditions can cause dizziness. For this reason, understanding why you feel dizzy is far more important than simply trying to stop the sensation itself.

Common Causes of Dizziness at a Glance

Possible cause	Is it usually serious?	Should you see a GP?
Dehydration	Usually not	If symptoms persist or keep returning
Inner ear disorders (including vertigo)	Usually not	Yes, particularly if symptoms affect balance
Low blood pressure	Often not	Yes, if episodes are frequent or unexplained
Medication side effects	Sometimes	Yes, especially after starting new medication
Migraine	Usually not	Yes, if symptoms are new or changing
Anxiety or stress	Can contribute	Yes, if symptoms are persistent or another cause has not been identified
Heart conditions	Sometimes	Prompt assessment is recommended
Neurological conditions	Less common	Medical assessment is important

When Dizziness Is Usually Not Serious

Many people experience brief episodes of dizziness that settle quickly and never return.

For example, dizziness may occur:

• after standing up too quickly;
• during hot weather;
• after mild dehydration;
• when recovering from a viral illness;
• after skipping a meal;
• during periods of significant stress.

In many cases, these episodes improve once the underlying trigger has resolved.

However, dizziness that becomes persistent, keeps returning or changes over time should always be assessed by a GP.

Why This Topic Matters

Almost everyone experiences dizziness at some point during their life.

For many people, it lasts only a few seconds before settling naturally. It may occur after standing up quickly, during an illness or following mild dehydration.

However, not every episode of dizziness should be dismissed.

If dizziness becomes more frequent, keeps returning, lasts longer than expected or begins affecting your confidence, work or everyday activities, it deserves medical assessment.

One of the biggest misconceptions is that dizziness always means either “low blood pressure” or “an inner ear problem.”

In reality, dizziness can originate from several different body systems.

For example, it may be related to:

• the inner ear;
• blood pressure;
• the heart;
• medication;
• dehydration;
• blood sugar levels;
• anxiety;
• migraine;
• neurological conditions.

Because so many different conditions can produce a similar sensation, diagnosing dizziness requires much more than simply describing how you feel.

Instead, your GP will consider your symptoms alongside your medical history, current medication, lifestyle, blood pressure and any associated symptoms before deciding whether further investigations are necessary.

Early assessment often provides reassurance, identifies treatable causes and ensures that symptoms requiring further investigation are recognised promptly.

What Does “Dizziness” Actually Mean?

One reason dizziness can be difficult to diagnose is that different people use the word to describe completely different sensations.

For example, one person may describe dizziness as feeling:

• light-headed;
• faint;
• unsteady;
• off balance;
• as though the room is spinning.

Another person may use exactly the same word to describe something entirely different.

For this reason, one of the first questions your GP is likely to ask is:

“Can you describe exactly what you mean by dizzy?”

Your answer often provides valuable clinical clues about the underlying cause.

Common Types of Dizziness

Description	What people often describe
Light-headedness	Feeling faint or as though you might pass out.
Vertigo	A sensation that you or your surroundings are spinning or moving.
Unsteadiness	Feeling off balance while standing or walking.
General dizziness	A vague feeling of being “not quite right” without obvious spinning or faintness.

Although these descriptions are helpful, they do not confirm a diagnosis.

Instead, they help your GP decide which questions to ask next, whether a physical examination is required and if any investigations may be appropriate.

Why You Should Never Self-Diagnose Dizziness

Many people search online after experiencing dizziness.

Although reliable health information can help explain possible causes, dizziness is rarely diagnosed from one symptom alone.

For example, two people may both describe feeling “dizzy” while having completely different underlying conditions.

Likewise, one person may experience occasional dizziness because of dehydration, whereas another may develop similar symptoms because of an inner ear disorder, medication side effects or another medical condition.

Therefore, GPs always assess dizziness within the wider context of your overall health rather than relying on the symptom itself.

During your consultation, your doctor may consider:

• your age;
• previous medical history;
• current medications;
• blood pressure;
• recent illnesses;
• lifestyle;
• associated symptoms;
• family history where relevant.

Only by looking at the complete clinical picture can the most appropriate next steps be decided.

Common Causes of Dizziness

Fortunately, most people experiencing dizziness do not have a serious medical condition.

Instead, dizziness is often linked to common and treatable causes.

Understanding when symptoms occur, how long they last and what other symptoms accompany them often provides important diagnostic clues.

Common Causes of Dizziness

Although dizziness can feel alarming, most cases seen by GPs are not caused by a serious medical condition.

Instead, symptoms are often related to common and treatable conditions.

Understanding when dizziness occurs, how long it lasts and which other symptoms are present often provides valuable diagnostic clues.

Common Causes Compared

Possible cause	Typical symptoms	Usually urgent?
Inner ear disorders	Spinning sensation (vertigo), nausea, balance problems	Usually no
Dehydration	Light-headedness, thirst, fatigue	Usually no
Low blood pressure	Feeling faint when standing	Usually no
Medication side effects	Dizziness after starting or changing medication	Sometimes
Migraine	Dizziness with or without headache	Usually no
Anxiety	Light-headedness, rapid breathing, palpitations	Usually no
Anaemia	Fatigue, breathlessness, dizziness	Assessment recommended
Heart conditions	Dizziness with chest pain or palpitations	Prompt assessment recommended

Inner Ear Problems (Vertigo)

The inner ear plays an essential role in maintaining balance.

When it is affected, people often experience vertigo, which is different from simply feeling faint or light-headed.

People with vertigo frequently describe:

• the room spinning around them;
• a sensation of movement while standing still;
• loss of balance;
• nausea;
• vomiting;
• symptoms that worsen when turning the head.

Several common conditions can affect the inner ear, including:

• Benign Paroxysmal Positional Vertigo (BPPV);
• vestibular neuritis;
• labyrinthitis;
• Ménière’s disease.

Although these conditions can cause severe dizziness, many improve following appropriate assessment and treatment.

Dehydration

Not drinking enough fluids is one of the simplest and most common causes of dizziness.

When dehydration occurs, blood volume may fall, making it harder for the body to maintain normal blood pressure.

As a result, some people experience:

• light-headedness;
• feeling faint;
• dry mouth;
• increased thirst;
• fatigue;
• dizziness that improves after drinking fluids.

Older adults may be particularly susceptible, especially during hot weather, illness or after prolonged physical activity.

Low Blood Pressure

Some people experience dizziness because their blood pressure temporarily drops when they stand up.

This is known as postural (orthostatic) hypotension.

Symptoms often occur:

• after standing quickly;
• first thing in the morning;
• after prolonged sitting;
• during illness;
• following dehydration.

Typically, symptoms improve after sitting or lying down for a short period.

Your GP may check your blood pressure in different positions to determine whether this is contributing to your symptoms.

Medication Side Effects

Certain medicines may occasionally cause dizziness.

Examples include medications used to treat:

• high blood pressure;
• depression;
• anxiety;
• allergies;
• some heart conditions.

However, this does not mean you should stop taking prescribed medication yourself.

Instead, if dizziness begins soon after starting a new medicine or changing the dose, speak to your GP before making any changes.

Viral Illnesses

Dizziness sometimes develops during or shortly after a viral infection.

This may happen because of:

• fever;
• dehydration;
• inflammation affecting the inner ear;
• temporary weakness during recovery.

Fortunately, symptoms often improve gradually as the underlying illness resolves.

Low Blood Sugar

People who skip meals, exercise intensely without eating or have diabetes may occasionally experience dizziness related to low blood glucose.

Other symptoms may include:

• sweating;
• shakiness;
• hunger;
• blurred vision;
• difficulty concentrating.

Nevertheless, low blood sugar is only one of many possible causes.

Therefore, your GP will consider your symptoms alongside your medical history before deciding whether further assessment is required.

Anaemia

Anaemia occurs when there are fewer healthy red blood cells or lower haemoglobin levels than expected.

Because red blood cells carry oxygen around the body, anaemia may sometimes cause:

• dizziness;
• tiredness;
• breathlessness;
• reduced exercise tolerance;
• pale skin.

If appropriate, your GP may recommend blood tests to investigate whether anaemia or another nutritional deficiency could be contributing.

➡️ Private Blood Tests in Richmond

Anxiety and Stress

Stress and anxiety can produce genuine physical symptoms.

For example, some people experience:

• light-headedness;
• a sensation of floating;
• rapid breathing;
• palpitations;
• tingling sensations;
• difficulty concentrating.

Although anxiety is a recognised cause of dizziness, it should never automatically be assumed to be the explanation without first excluding other possible causes.

Migraine

Migraine is a neurological condition that can cause much more than headache alone.

Some people experience dizziness or vertigo even when little or no headache is present.

Other symptoms may include:

• sensitivity to light;
• sensitivity to sound;
• nausea;
• visual disturbances.

Recognising this pattern helps your GP recommend the most appropriate management plan.

➡️ Persistent Headaches: When Should You See a GP?

Heart-Related Causes

Occasionally, dizziness may be related to a cardiovascular problem.

Possible causes include:

• heart rhythm disturbances;
• reduced blood flow;
• certain heart conditions.

Dizziness accompanied by chest pain, palpitations, shortness of breath or collapse should always be assessed promptly.

Where clinically appropriate, your GP may recommend further cardiovascular assessment.

➡️ Chest Pain: When Should You See a GP and When Is It an Emergency?

Looking Beyond the Dizziness

One of the greatest strengths of seeing a GP is that the consultation focuses on your overall health, not simply the symptom itself.

During your appointment, your doctor may ask about:

• when the dizziness started;
• how long each episode lasts;
• what you were doing when symptoms began;
• whether changing position triggers symptoms;
• current medications;
• blood pressure;
• hydration;
• recent illnesses;
• alcohol intake;
• sleep quality;
• stress levels;
• associated symptoms.

As a result, your GP can build a much clearer clinical picture than would be possible by considering dizziness alone.

Common Myths About Dizziness

Myth: Dizziness always means low blood pressure.

Reality: Low blood pressure is only one of many possible causes.

Myth: Vertigo and dizziness are exactly the same.

Reality: Vertigo is one specific type of dizziness characterised by a spinning sensation.

Myth: If dizziness comes and goes, it is not worth checking.

Reality: Recurrent symptoms should always be discussed with a healthcare professional.

Myth: Everyone with dizziness needs a brain scan.

Reality: Most people do not require CT or MRI imaging. Investigations are only arranged when clinically appropriate.

Myth: Drinking more water fixes every type of dizziness.

Reality: Hydration is important, but dizziness has many different causes. Therefore, treating dehydration alone may not resolve the underlying problem.

Dizziness in Richmond: When Should You See a GP?

Most episodes of dizziness improve without medical treatment and are not caused by a serious illness.

However, persistent, recurrent or unexplained dizziness should never be ignored.

One of the most important things to remember is that a change in your usual symptoms is often more significant than the intensity of the dizziness itself.

For example, dizziness that gradually becomes more frequent over several weeks deserves medical assessment, even if each episode lasts only a few minutes.

Likewise, if you have experienced occasional dizziness for years but suddenly notice a different pattern, it is sensible to seek medical advice rather than assuming it is “the same as before.”

A GP consultation helps identify the underlying cause and determine whether reassurance, treatment or further investigation is appropriate.

When Should You Book a GP Appointment?

You should consider arranging an appointment if your dizziness:

• continues for several days;
• keeps returning without an obvious explanation;
• becomes more frequent;
• affects your work or daily activities;
• interferes with walking or balance;
• occurs together with headaches, palpitations or unusual tiredness;
• develops after starting a new medication;
• feels different from previous episodes;
• causes concern, even if symptoms are mild.

Seeking medical advice early does not mean that something serious is suspected.

Instead, it allows your GP to identify possible causes before symptoms become more disruptive.

Red Flag Symptoms: When Should You Call 999?

Although most dizziness is not a medical emergency, some symptoms require immediate assessment.

Call 999 or attend your nearest Emergency Department immediately if dizziness occurs together with:

• chest pain;
• severe shortness of breath;
• sudden weakness affecting the face, arm or leg;
• difficulty speaking or understanding speech;
• sudden loss of vision;
• collapse or loss of consciousness;
• seizures;
• severe head injury;
• sudden confusion;
• a sudden, severe headache unlike anything you have experienced before.

These symptoms do not always indicate a serious condition, but they should always be assessed urgently.

What Will a GP Ask During Your Appointment?

Diagnosing dizziness begins with a detailed conversation.

Rather than focusing only on the symptom itself, your GP will want to understand how dizziness fits into your overall health.

You may be asked:

• When did the dizziness first begin?
• Does the room feel like it is spinning?
• Do you feel faint or light-headed?
• How long does each episode last?
• What were you doing when symptoms started?
• Does changing position trigger the dizziness?
• Have you noticed hearing changes?
• Have you experienced headaches, blurred vision or palpitations?
• Have you recently been unwell?
• What medications do you take?

These questions often provide more useful information than investigations alone.

Physical Examination

Depending on your symptoms, your GP may perform a physical examination.

This could include:

• measuring your blood pressure while sitting and standing;
• checking your pulse;
• examining your ears;
• assessing your balance and coordination;
• performing a basic neurological examination;
• reviewing your general health.

In many cases, a careful medical history combined with a normal examination provides enough information to identify the most likely cause.

Are Blood Tests Ever Needed?

Many patients expect blood tests whenever they experience dizziness.

In reality, they are not necessary for everyone.

Instead, investigations are recommended only when your symptoms or medical history suggest they may help identify an underlying cause.

Depending on your individual circumstances, your GP may recommend tests to assess:

• iron deficiency or anaemia;
• thyroid function;
• vitamin B12;
• vitamin D;
• blood glucose;
• markers of inflammation;
• kidney function;
• liver function.

These investigations do not diagnose dizziness directly.

Instead, they may identify conditions that contribute to your symptoms.

At Evergreen Richmond, GP-led blood testing ensures that investigations are requested only when clinically appropriate and interpreted within the context of your overall health.

➡ Private Blood Tests in Richmond

Do You Need a Brain Scan?

One of the biggest concerns for people experiencing dizziness is whether they need a CT or MRI scan.

Fortunately, most people do not.

Current clinical guidance recommends brain imaging only when specific clinical features indicate that further investigation is appropriate.

Your GP will consider:

• your neurological examination;
• your medical history;
• associated symptoms;
• changes in your symptoms;
• whether any red flag features are present.

Avoiding unnecessary scans is an important part of evidence-based medical care.

If imaging is appropriate, your GP will explain why and arrange referral where necessary.

When Might You Be Referred to a Specialist?

Most people experiencing dizziness can be assessed and managed within primary care.

However, referral may be appropriate if:

• the diagnosis remains uncertain;
• symptoms persist despite appropriate management;
• an inner ear disorder is suspected;
• neurological assessment is required;
• further specialist investigations are clinically indicated.

Referral does not automatically mean that a serious condition has been identified.

Instead, it helps ensure that patients receive the most appropriate expertise when additional assessment is needed.

➡ GP or Specialist: Which Doctor Should You See First?

Can Dizziness Be Prevented?

Although prevention depends on the underlying cause, some people may reduce the frequency of dizziness by:

• staying well hydrated;
• eating regular meals;
• standing up gradually;
• getting enough sleep;
• remaining physically active;
• limiting excessive alcohol intake;
• discussing medication side effects with their GP where appropriate.

Small lifestyle changes can sometimes make a meaningful difference, particularly when symptoms have an identifiable trigger.

Common Mistakes People Make

Some habits may delay diagnosis or make symptoms more difficult to manage.

Common mistakes include:

• ignoring recurrent dizziness for several months;
• assuming low blood pressure is always responsible;
• stopping prescribed medication without medical advice;
• relying solely on online information instead of seeking assessment;
• expecting a brain scan at every appointment.

Early assessment often provides reassurance and helps identify treatable conditions sooner.

Key Takeaways

✔ Dizziness is one of the most common symptoms assessed by GPs.

✔ Most cases are not caused by a serious medical condition.

✔ Inner ear disorders, dehydration, medication, low blood pressure, migraine and anxiety are among the most common causes.

✔ Persistent, recurrent or changing dizziness should always be assessed.

✔ Blood tests and imaging are recommended only when clinically appropriate.

✔ Some symptoms require immediate emergency assessment.

Frequently Asked Questions

Is dizziness usually serious?

No. Most cases seen in primary care are not caused by a serious illness.

Can dehydration cause dizziness?

Yes. Dehydration is a recognised cause of light-headedness and dizziness in some people.

Can anxiety make you feel dizzy?

Yes. Anxiety can produce genuine physical symptoms, including dizziness, rapid breathing and palpitations.

Will I need blood tests?

Not always. Your GP will recommend investigations only if they are clinically appropriate.

Do I need a brain scan?

Usually not. Most people with dizziness do not require CT or MRI imaging.

Should I see a GP before seeing a specialist?

Yes. In most cases, a GP is the most appropriate first healthcare professional to assess dizziness and decide whether referral is needed.

When should I call 999?

Seek emergency medical attention immediately if dizziness occurs together with chest pain, sudden weakness, difficulty speaking, collapse, seizures or another suspected medical emergency.

Related Health Advice

You may also find this article helpful:

• Persistent Headaches: When Should You See a GP?

Take the Next Step: Speak to an Experienced Private GP

Feeling dizzy can be worrying, particularly when episodes become more frequent, last longer than expected or begin affecting your confidence and daily life.

At Evergreen Richmond Medical, our experienced Private GPs take the time to understand your symptoms, review your medical history and carry out a thorough assessment to identify the most likely cause. Where appropriate, we can arrange on-site blood tests, recommend further investigations and refer you to a trusted specialist if needed.

Whether your symptoms are new, persistent or simply causing concern, an early assessment can provide reassurance, help identify treatable conditions and ensure you receive the right care at the right time.

Book your Private GP appointment today and take the first step towards understanding what may be causing your dizziness.