Dizziness: What Causes It and When Should You Seek Medical Advice?

Dizziness can be a brief dizzy spell or something that lasts for days. A guide to the common causes, from BPPV and inner ear problems to blood pressure and medication, plus the warning signs that need urgent medical attention.

Dizziness is a common symptom that can affect people of all ages. It may leave you feeling lightheaded, unsteady on your feet, or as though the room is spinning around you. For some people, it lasts only a few seconds, while for others it can persist for hours or even days. Although dizziness is often caused by a relatively minor condition affecting the balance system of the inner ear, it can sometimes indicate an underlying medical problem that requires further investigation. At Oving Medical Clinic, we understand how unsettling dizziness can be. In this article, we explore the common causes of dizziness, explain when you should seek medical advice, and discuss how a medical assessment can help identify the cause of your symptoms. What Do We Mean by Dizziness? The word 'dizziness' can describe several different sensations. Understanding exactly what you are experiencing is an important first step in identifying the underlying cause. The most common descriptions include: Vertigo Vertigo is the sensation that you, your surroundings, or both are moving when they are not. Patients often describe it as feeling that the room is spinning. It may be triggered by turning your head, rolling over in bed, or looking upwards. Vertigo is frequently associated with problems affecting the inner ear, which plays an essential role in maintaining balance. Lightheadedness Lightheadedness is the feeling that you might faint or lose consciousness. It may occur when standing up quickly, particularly if your blood pressure drops temporarily. Dehydration, certain medications and other medical conditions can also contribute. Imbalance or unsteadiness Some people experience difficulty walking steadily or feel that they are losing their balance. This may be related to the inner ear, eyesight, medication, neurological conditions or problems affecting strength and coordination. General feelings of dizziness Dizziness can also present as a vague feeling of being disconnected, woozy or unwell. Anxiety, migraine, medication side effects and a range of other conditions may contribute. Describing your symptoms accurately can help your clinician determine which investigations, if any, are needed. What Are the Common Causes of Dizziness? There are many possible causes of dizziness. Some of the most common are described below. 1. Benign Paroxysmal Positional Vertigo (BPPV) Benign paroxysmal positional vertigo, commonly known as BPPV, is one of the most frequent causes of vertigo. It occurs when tiny calcium crystals within the inner ear move into an area where they interfere with the normal balance signals sent to the brain. Typical symptoms include: Brief episodes of spinning, often lasting less than a minute. Dizziness when rolling over in bed. Symptoms when looking upwards or bending forwards. Nausea during or after an episode. BPPV can be particularly troublesome first thing in the morning or when changing position in bed. The good news is that BPPV can often be treated effectively using specific head and body movements, known as repositioning manoeuvres. The appropriate manoeuvre depends on which part of the balance system is affected. 2. Vestibular Neuritis and Labyrinthitis Vestibular neuritis and labyrinthitis are conditions involving inflammation of the inner ear balance system or its associated nerve. They may occur following a viral illness. Both can cause sudden, prolonged vertigo, nausea and difficulty walking steadily. Vestibular neuritis affects the balance nerve and does not usually cause hearing loss. Labyrinthitis affects the inner ear and may cause hearing loss or tinnitus alongside vertigo. Symptoms may improve gradually over several days, although some people experience lingering imbalance for weeks. Importantly, sudden severe vertigo can occasionally be caused by a stroke or another serious condition. New, persistent symptoms should therefore be assessed promptly rather than automatically attributed to an inner ear infection. 3. Ménière's Disease Ménière's disease is an inner ear condition that can cause recurrent episodes of vertigo. Other symptoms may include: Fluctuating hearing loss. Tinnitus, or ringing in the ears. A feeling of pressure or fullness in one ear. Episodes can last from around 20 minutes to several hours. Symptoms vary between individuals, and specialist assessment may be needed to establish the diagnosis. 4. Low Blood Pressure and Dehydration A temporary fall in blood pressure can cause lightheadedness, particularly when moving from sitting or lying down to standing. This is known as postural hypotension. Possible contributing factors include: Not drinking enough fluids. Recent illness, vomiting or diarrhoea. Certain blood pressure medications. Prolonged bed rest. Some underlying medical conditions. If you regularly feel faint when standing, a clinician may check your blood pressure while lying down and standing up. Further assessment may be appropriate depending on your symptoms and medical history. 5. Medication Side Effects Dizziness can be a side effect of many medications, including some treatments for high blood pressure, anxiety and other conditions. The likelihood of medication-related dizziness may increase following a change in dose or the introduction of a new medicine. If your symptoms started after a medication change, discuss this with your clinician or pharmacist. Do not stop prescribed medication without appropriate medical advice. 6. Migraine-Associated Vertigo Vestibular migraine can cause episodes of vertigo, dizziness or imbalance in people with a history of migraine. Interestingly, a headache does not always accompany these episodes. Other possible symptoms include sensitivity to light or sound, nausea and visual disturbances. Vestibular migraine can sometimes resemble an inner ear disorder, so a careful assessment of the pattern of symptoms and medical history is important. 7. Anxiety and Stress Anxiety can contribute to dizziness, lightheadedness and feelings of unsteadiness. Changes in breathing during periods of anxiety may also produce these sensations. However, dizziness should not automatically be attributed to stress, particularly if it is new, persistent or accompanied by other symptoms. A medical assessment can help determine whether an underlying physical condition needs to be investigated. When Should You Seek Medical Attention? Although many causes of dizziness are treatable, certain symptoms require urgent medical assessment. Call 999 if dizziness occurs with: Sudden weakness or numbness affecting one side of the body. Facial drooping or difficulty speaking. Double vision or sudden loss of vision. A sudden inability to stand or walk safely. A sudden, severe headache unlike your usual headaches. Chest pain, severe breathing difficulty or collapse. These symptoms may indicate a serious condition, including a stroke or a cardiovascular emergency. Do not assume that sudden, severe vertigo is simply an inner ear problem. Stroke can sometimes present with dizziness and imbalance, even when the more familiar warning signs are absent. If you experience sudden hearing loss in one ear, seek urgent same-day medical assessment. Sudden hearing loss can be time-sensitive and may require prompt specialist treatment. You should also seek prompt medical advice if dizziness is new and persistent, repeatedly causes falls, is associated with fainting, or is accompanied by significant vomiting or difficulty keeping fluids down. If you are unsure how urgently you need to be assessed, contact NHS 111 for advice. How Is Dizziness Investigated? The most appropriate assessment depends on the nature and duration of your symptoms. Your clinician will usually begin by taking a detailed medical history. Depending on the findings, the examination may include: Blood pressure and pulse measurements These can help identify postural hypotension or abnormalities of the heart rate. Ear examination Looking into the ears can help identify certain conditions affecting the ear canal or eardrum, although a normal ear examination does not exclude an inner ear balance disorder. Balance and eye movement assessment Specific eye movements, including involuntary movements known as nystagmus, can provide useful information about the balance system. Positional testing Where BPPV is suspected and it is safe to do so, a clinician may perform a positional test to determine whether particular head movements trigger vertigo. Neurological examination This may be necessary to assess coordination, strength, sensation, walking and other neurological functions. Further investigations Depending on the clinical picture, additional tests may include an electrocardiogram (ECG), blood tests, hearing assessment or specialist referral. Not everyone needs every test. The aim is to identify the most likely cause while ensuring that more serious conditions are not overlooked. How Is Dizziness Treated? Treatment depends on the underlying cause. For BPPV, a repositioning manoeuvre may resolve symptoms by moving displaced crystals back into the appropriate part of the inner ear. Dehydration may require fluid replacement, while medication-related dizziness may improve following a clinician-guided review of treatment. Vestibular rehabilitation exercises can help some people recover their balance following an inner ear disorder. Migraine-associated vertigo may require migraine-specific management. Other conditions may need further investigation or specialist treatment. Until the cause of your dizziness is understood, take care when standing, walking or using stairs. Sit or lie down if you feel faint, avoid driving while dizzy, and ask for assistance if you cannot walk safely. If you experience persistent or recurrent symptoms, do not simply rely on over-the-counter medication without seeking appropriate advice. Can Dizziness Be Prevented? Not every episode of dizziness can be prevented, but some practical measures may help reduce the risk of certain causes. These include: Drinking sufficient fluids, particularly during hot weather or illness. Standing up gradually after sitting or lying down. Reviewing medications with a clinician if you experience recurrent symptoms. Managing any underlying medical conditions. Taking care to prevent falls if you feel unsteady. Seeking assessment when symptoms are new, persistent or recurrent. If you have previously been diagnosed with BPPV or another balance disorder, your clinician may recommend specific treatment or rehabilitation strategies. Frequently Asked Questions About Dizziness Is dizziness always caused by an inner ear problem? No. Although inner ear conditions are common causes of vertigo, dizziness can also arise from changes in blood pressure, medication side effects, migraine, heart rhythm problems and neurological conditions. Why do I feel dizzy when I turn over in bed? Brief spinning sensations triggered by rolling over, looking upwards or changing head position may be caused by BPPV. A clinical assessment can help confirm the diagnosis and determine whether a repositioning manoeuvre is appropriate. Can an ear infection cause dizziness? Some conditions affecting the inner ear can cause vertigo and imbalance. However, not every ear infection causes dizziness, and dizziness should not automatically be attributed to an ear infection without assessment. Can dizziness be a sign of something serious? Yes. Although many causes are not dangerous, sudden dizziness associated with neurological symptoms, an inability to walk, collapse or other significant warning signs may indicate a medical emergency. When should I see a doctor about dizziness? Seek medical advice if dizziness is new, recurrent, persistent, unexplained or affecting your daily activities. Sudden severe symptoms or associated warning signs require urgent assessment. Expert Assessment at Oving Medical Clinic Dizziness can be distressing, particularly when it affects your confidence, mobility or ability to carry out everyday activities. Identifying the cause is the first step towards appropriate treatment. A careful medical history and examination can help distinguish common balance disorders from other conditions that may require further investigation. At Oving Medical Clinic, we aim to provide a thoughtful, patient-centred approach to assessing your symptoms and advising on the most appropriate next steps. Dr Wang is perfectly placed to deliver this, with his experience in both general practice and ENT. If you are experiencing recurrent or unexplained dizziness, arrange a medical assessment rather than continuing to put up with the symptoms. Contact Oving Medical Clinic to discuss your symptoms and find out whether an appointment is appropriate. Medical disclaimer: This article is intended for general information and does not replace an individual medical assessment. If you experience symptoms suggestive of a stroke, a cardiovascular emergency or another serious condition, call 999. For sudden hearing loss, seek urgent same-day medical assessment.