Dizziness and light-headedness are common symptoms that can mean different things to different people. You may feel faint, unsteady, weak, disconnected, or as though the room is spinning. In many cases, the cause is temporary, such as dehydration, hunger, heat, stress, or standing up too quickly. Recurring or severe symptoms may point to an inner-ear problem, low blood pressure, medication side effect, heart condition, or another medical concern. Understanding the pattern can help you know when to rest and when to seek medical care.
Understanding What Dizziness Feels Like
Dizziness is a general word used to describe several different sensations. Accurately explaining what you feel can help your doctor identify the most likely cause.
Dizziness may involve:
Feeling faint or light-headed
Feeling unsteady while standing or walking
A sensation that you may fall
Feeling as though you are floating
Feeling disconnected or mentally foggy
A spinning or moving sensation
Temporary blurred vision
Weakness or loss of balance
Light-headedness often feels as though you may faint, although you may remain conscious. It can occur when the brain briefly receives less blood flow, such as after standing up quickly, becoming dehydrated, or going too long without eating.
Vertigo is different from general light-headedness. It creates a false sensation that you or the environment is spinning, tilting, or moving. Vertigo often arises from the inner ear, which plays an important role in balance.
Unsteadiness may feel more like difficulty walking in a straight line or maintaining balance. It can be linked to the inner ear, vision, nerves, muscles, medication, or conditions affecting the brain.
Try to describe the sensation rather than saying only that you feel dizzy. Details about what you feel, when it starts, and how long it lasts can make the medical assessment more useful.
Dehydration, Heat and Not Eating Enough
Dehydration is a common cause of dizziness and light-headedness. When the body loses more fluid than it replaces, blood volume may decrease. This can reduce circulation and make you feel weak or faint, particularly when standing.
Fluid loss may increase because of:
Hot weather
Exercise
Heavy physical work
Fever
Vomiting
Diarrhoea
Excessive sweating
Alcohol consumption
Certain medicines
Inadequate water intake
Pretoria’s hot weather can increase the risk, especially for people working outdoors, exercising in the heat, or spending time in poorly ventilated spaces.
Early signs of dehydration may include thirst, a dry mouth, dark urine, reduced urination, headache, tiredness, and dizziness. More severe dehydration can cause confusion, fainting, a rapid heartbeat, or very little urine.
Missing meals can also lead to weakness, shakiness, sweating, and light-headedness. People taking medication for diabetes face a higher risk of low blood glucose, particularly when they delay meals, exercise more than usual, or take too much medication.
If you feel faint, sit or lie down immediately to reduce the risk of falling. Drink water if you can swallow safely and dehydration is likely. Eat an appropriate snack if hunger may be responsible. People with diabetes should follow their personalised plan for checking and treating low blood glucose.
Persistent symptoms should not be managed through food and water alone. Repeated dizziness may have another cause that requires investigation.
Blood Pressure and Circulation Problems
Blood pressure can contribute to dizziness when it becomes too low or changes suddenly. Some people feel light-headed when they move from lying or sitting to standing. This is called postural or orthostatic hypotension.
When you stand, gravity causes blood to collect temporarily in the legs. The body usually responds by tightening blood vessels and adjusting the heart rate. If this response is delayed or inadequate, blood flow to the brain may briefly decrease.
Possible symptoms include:
Light-headedness after standing
Blurred or darkened vision
Weakness
Feeling unsteady
Nausea
Fainting
Postural hypotension may be more likely in older adults, during dehydration, after prolonged bed rest, or when taking certain medicines. Blood pressure tablets, diuretics, antidepressants, and some medicines used for Parkinson’s disease can contribute.
Heart rhythm problems may also reduce effective blood flow and cause dizziness. A person may notice palpitations, an unusually fast heartbeat, an irregular pulse, breathlessness, or chest discomfort.
Other circulation-related causes include heart valve problems, reduced heart pumping function, blood loss, and severe infection. These conditions are less common than mild dehydration or a brief blood pressure drop, but they require medical attention.
Rise slowly from bed or a chair if standing triggers symptoms. Sit on the edge of the bed for a short time before getting up. Do not stop blood pressure medication without professional advice. Dr Jolandi Meyer can review your blood pressure readings, symptoms, medication, and hydration to identify the safest way forward.
Inner-Ear Conditions and Vertigo
The inner ear contains structures that help the brain understand head movement and body position. A disturbance in this system can cause vertigo, imbalance, nausea, and difficulty walking.
Benign paroxysmal positional vertigo, often shortened to BPPV, is a common cause of brief spinning episodes. It may occur when you roll over in bed, look upwards, bend down, or turn your head quickly. The symptoms often last less than a minute but can be intense.
Other possible inner-ear causes include:
Vestibular neuritis
Labyrinthitis
Ménière’s disease
Ear infection
Migraine-associated vertigo
Injury affecting the ear or head
Labyrinthitis can cause vertigo, nausea, imbalance, and hearing changes. Vestibular neuritis often causes severe vertigo without significant hearing loss.
Ménière’s disease may cause episodes of vertigo with tinnitus, hearing loss, or a feeling of pressure inside the affected ear. Having these symptoms does not automatically mean that you have Ménière’s disease, as other conditions can produce a similar pattern.
Vertigo may cause nausea and vomiting. Some people become afraid to move because turning the head makes the sensation worse. A careful examination can help distinguish an inner-ear problem from a neurological or circulation-related cause.
Avoid driving, climbing ladders, or operating machinery while experiencing vertigo. Sudden vertigo accompanied by weakness, speech changes, severe headache, double vision, or difficulty walking needs urgent medical assessment.
Medicines and Medical Conditions That May Cause Dizziness
Dizziness and light-headedness can be side effects of many medicines. The risk may increase after starting a new treatment, changing a dose, or combining several medicines.
Medicines that may contribute include:
Blood pressure medication
Diuretics
Sedatives
Sleeping tablets
Some antidepressants
Anti-anxiety medication
Certain pain medicines
Muscle relaxants
Some epilepsy medication
Medicines that affect blood glucose
Alcohol can intensify the sedating or blood-pressure-lowering effects of certain medicines. Herbal products and supplements may also interact with prescribed treatment.
Never stop a prescribed medicine suddenly because you suspect it is causing dizziness. Some medicines need to be reduced gradually, while stopping others may allow the underlying condition to worsen. Ask Dr Meyer to review the timing of your symptoms and your full medication list.
Medical conditions that may cause dizziness include:
Anaemia
Thyroid disorders
Diabetes
Low blood glucose
Infection
Migraine
Sleep apnoea
Heart rhythm problems
Neurological conditions
Vitamin deficiencies
Anxiety disorders
Anaemia may cause tiredness, weakness, shortness of breath, palpitations, headaches, and light-headedness. Thyroid disorders can affect energy, heart rate, temperature tolerance, and concentration.
Dizziness is a symptom rather than a diagnosis. Identifying the underlying cause is more helpful than repeatedly treating the sensation without understanding why it is happening.
Stress, Anxiety and Breathing Changes
Stress and anxiety can cause genuine physical symptoms, including dizziness. During a stressful situation, the body releases hormones that affect breathing, heart rate, muscle tension, and alertness.
A person who breathes rapidly or deeply during anxiety may lower the carbon dioxide level in the blood. This can cause:
Light-headedness
Tingling around the mouth
Tingling in the hands
Chest tightness
A racing heartbeat
Feelings of unreality
Shakiness
Fear of fainting
These sensations can feel alarming and may increase anxiety, creating a cycle in which fear makes the symptoms stronger.
Panic attacks can begin suddenly and may include dizziness, chest discomfort, sweating, trembling, shortness of breath, nausea, and a sense of impending danger. The symptoms can resemble a heart or neurological problem, particularly during a first episode.
Anxiety should not automatically be assumed to be the cause of new dizziness. Physical explanations such as anaemia, low blood pressure, medication effects, an inner-ear condition, or an abnormal heart rhythm may need to be considered.
Once urgent and physical causes have been assessed, stress-management techniques may help. Slow, gentle breathing, adequate sleep, regular meals, physical activity, counselling, and treatment for an anxiety disorder may reduce symptoms.
Consult Dr Meyer if anxiety is interfering with work, relationships, sleep, or daily activities. Effective treatment can address the emotional distress and the physical symptoms that accompany it.
Warning Signs That Need Urgent Medical Care
Most episodes of dizziness are not caused by a life-threatening condition. Certain warning signs require immediate medical attention because they may indicate a stroke, heart problem, serious infection, internal bleeding, or another emergency.
Seek emergency medical help for sudden or severe dizziness accompanied by:
Weakness or numbness on one side of the body
Facial drooping
Slurred speech
Confusion
Difficulty understanding speech
Sudden loss of coordination
Severe difficulty walking
Double vision or sudden loss of vision
A sudden, severe headache
Chest pain or pressure
Severe shortness of breath
A rapid or irregular heartbeat
Fainting
A seizure
Ongoing vomiting
Sudden hearing loss
Loss of consciousness
Dizziness after a significant head injury
Stroke symptoms can develop without pain. Do not wait to see whether weakness, facial drooping, speech difficulty, or sudden loss of balance improves. Emergency treatment is time-sensitive.
Dizziness with chest pain, severe breathlessness, sweating, nausea, or discomfort spreading to the arm, jaw, neck, back, or upper abdomen may indicate a heart emergency.
Someone experiencing severe symptoms should not drive. Contact emergency medical services or arrange immediate transport to an emergency department.
Urgent assessment is also important when dizziness occurs during pregnancy with severe headache, vision changes, swelling, chest pain, breathlessness, bleeding, or fainting.
When to Arrange a GP Appointment
Dizziness that is brief and linked to an obvious temporary trigger may improve with rest, hydration, and food. Recurring or unexplained symptoms should be assessed by a doctor.
Book an appointment when:
Dizziness keeps returning
Symptoms are becoming more frequent
An episode lasts longer than expected
The cause is unclear
You have fainted
You repeatedly feel close to fainting
Your hearing has changed
You have ongoing tinnitus
You experience recurring headaches
Your balance is getting worse
You have fallen because of dizziness
Symptoms began after starting a medicine
You have palpitations
You feel unusually tired or weak
Dizziness interferes with work, driving, or daily activities
Older adults should seek medical advice when dizziness increases their risk of falling. Falls can cause serious injuries and may reduce confidence and independence.
A child with repeated dizziness, fainting, symptoms during exercise, chest pain, or palpitations should also receive medical assessment.
Keep a record of when the symptoms occur. Note whether they follow standing, turning your head, missing a meal, taking medication, exercising, or entering a hot environment. Record how long the episode lasts and which other symptoms appear.
This information can help Dr Meyer distinguish light-headedness, vertigo, imbalance, medication effects, and other possible causes.
Diagnosis, Treatment and Staying Safe
The investigation begins with a detailed discussion of your symptoms and medical history. Dr Meyer may ask what dizziness feels like, when it started, what triggers it, and how long each episode lasts.
Your assessment may include:
Blood pressure while lying, sitting, and standing
Pulse and heart rhythm checks
An ear examination
Eye movement assessment
Balance and walking tests
Neurological checks
Review of medicines and supplements
Blood glucose testing
An electrocardiogram
Blood tests may be used to check for anaemia, infection, thyroid problems, electrolyte disturbances, blood glucose changes, kidney function, or nutritional deficiencies.
Treatment depends on the underlying cause. It may involve improving hydration, treating anaemia, adjusting medication under supervision, managing blood glucose, treating an infection, addressing an inner-ear condition, or referring you for specialised care.
While the cause is being investigated, reduce your risk of injury:
Sit or lie down when dizziness begins
Stand up slowly
Hold onto a stable surface
Keep floors free of tripping hazards
Use good lighting at night
Avoid ladders and heights
Do not drive while dizzy
Avoid operating dangerous machinery
Ask for assistance when walking if you feel unsteady
Avoid taking someone else’s medication for dizziness. A treatment that helps one cause may be unsuitable for another.
How Dr Jolandi Meyer Can Help
Dr Jolandi Meyer is a GP in Pretoria who can assess dizziness, light-headedness, vertigo, fainting, and balance problems. Her approach focuses on identifying the cause instead of treating every dizzy sensation in the same way.
During your consultation, Dr Meyer can review the pattern of your symptoms, medical history, medication, diet, fluid intake, stress levels, and any recent illness. She can examine your ears, heart, circulation, balance, eye movements, and nervous system where appropriate.
Blood pressure checks, blood tests, blood glucose testing, or an ECG may be recommended based on your symptoms. Dr Meyer can also assess conditions such as anaemia, thyroid disease, dehydration, medication side effects, and postural hypotension.
If an inner-ear disorder, heart condition, or neurological problem is suspected, she can arrange an appropriate referral or further investigation.
Seek medical advice if dizziness is recurring, affecting your balance, causing falls, or making normal activities difficult. A thorough assessment can provide reassurance when the cause is minor and ensure that a significant medical condition is not overlooked.
Dizziness and light-headedness are often linked to manageable causes. Sudden dizziness with weakness, speech difficulty, chest pain, fainting, severe headache, or breathing problems requires emergency care.
If your symptoms persist or keep returning, book a consultation with Dr Jolandi Meyer in Pretoria for a careful assessment and an appropriate treatment plan.
Common Ailments Treated by Dr. Jolandi Meyer
Dr. Jolandi Meyer’s expertise and comprehensive treatment options make her an exceptional General Practitioner for addressing all ailments. She provides personalised care, empowering patients to achieve optimal health. Her compassionate approach ensures patients receive the highest quality treatment. Her practice is located in Garsfontein, Pretoria on the same premises as The Way Recovery Centre.
With her support and guidance, patients can embark on a journey towards improved well-being and a healthier, happier life.