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:
- Orthostatic hypotension, a drop in blood pressure when standing
- Neurological conditions
- Conditions that affect how the heart pumps blood to the body
- Anxiety disorders
- Alcohol or illicit drug use
- Infection or fever
- Head injury
- Hypoglycemia (low blood sugar)
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
Copyright © Nucleus Medical Media, Inc.
Last reviewedNovember 2014by Rimas Lukas, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.