Dizziness may cause you to feel light-headed or weak. You may feel like you are going to faint. Dizziness can happen for a short period or be a long-lasting condition that gets in the way of your daily activities. It is different from vertigo, which is a feeling that the room is spinning or rotating while you are still.
Many conditions can cause dizziness such as:
- A drop in blood pressure when standing—orthostatic hypotension
- Neurological conditions
- Conditions that affect how the heart pumps blood to the body
- Anxiety disorders
- Alcohol use disorder or illicit drug use
- Infection or fever
- Brain injury
- Low blood sugar—hypoglycemia
Prescription medications can also cause dizziness. These may include:
- Angiotensin-converting enzyme (ACE) inhibitors
- Calcium channel blockers
- Tricyclic antidepressants
- Monoamine oxidase inhibitors
|Blood Flow to the Brain|
|In some cases, dizziness may be due to decreased blood flow to the brain.|
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Dizziness is a symptom that may be caused by another condition. There are no specific risk factors for dizziness.
Symptoms depend on the type of dizziness you have. Common symptoms include:
- Nausea or vomiting
- Vision or hearing problems
- Heart palpitations
You will be asked about your symptoms and medical history. A physical exam will be done.
Tests may include:
- Blood tests
- Blood pressure measurements
Images may be taken of your bodily structures. This can be done with:
- CT scan
- MRI scan
The electrical activity of your heart may be tested. This can be done with an electrocardiogram (EKG).
Other tests may include:
- Tilt table test
- Hearing and vision tests
Treatment depends on the cause of the dizziness. If your dizziness is caused by a condition, the treatment may help reduce symptoms. Examples include:
|Orthostatic hypotension||Medication, lifestyle, and dietary changes|
|Motion sickness||Medication and lifestyle changes|
|Anxiety disorder or other mental health condition||Therapy and medication|
|Infection||Antibiotic or antiviral medication|
|Dizziness due to medication that you are taking||Changes to your medication|
|Imbalance||Physical therapy to build strength and balance|
To help prevent dizziness:
- Avoid sudden movements.
- Avoid bending down or extending your neck.
- Avoid smoking, drinking excess amounts of alcohol, and using illicit drugs.
- Maintain proper treatment for long-term conditions.
- Get treatment when you have an infection.
- Talk to your doctor right away if you have side effects from your medications.