Most episodes of dizziness are unpleasant, but they're harmless and end quickly. If you have severe, prolonged or recurrent dizziness, see your personal physician. After evaluation, they may refer you to a neurologist or an ear, nose and throat specialist. If you experience presyncope, you'll feel dizzy but won't black out. Presyncope is caused by reduced blood flow to the brain.
Many forms are benign.
As a result, blood may pool in your legs, diminishing your brain's blood supply. Presyncope is more serious after age 40. Some of these conditions demand emergency care. You may feel you're spinning, tilting, rocking or falling through space. This is a disorder of the inner ear.