Lightheadedness Information on Healthline

Marketplace

Licensed from

Definition

Lightheadedness is a reeling sensation, caused by a temporary decrease in blood flow to the brain.

Alternative Names

Lightheaded.

Synopsis

Feeling lightheaded is a sensation that may precede syncope or fainting. It is usually experienced when in an upright position (standing or sitting). If it occurs when you are lying down, then the cause may be more serious. One may have the sense the floor is moving or the room is spinning. Because the sensation is often related to a momentary decreased blood flow to the brain, the sensation can usually be remedied by getting into a horizontal position.

Associated Diagnoses

Treatments

Lie down. If the sensation persists, call your doctor.

Call 911:

If you experience lightheadedness along with any of these symptoms:

Chest pain
Confusion
Passing out or fainting
Sweating profusely
Bleeding
Jaw pain
Severe headache
Blindness or visual changes
Abdominal pain
Pallor (pale skin)

Written by: JC Jones MA, RN
Reviewed by: Paul Auerbach, MD
Written: September 19, 2007
Last Updated: September 30, 2007
Published By: Healthline Networks Inc.