Understanding Fainting -- Symptoms

Medically Reviewed by Sabrina Felson, MD on May 02, 2023

Depending on the cause of your fainting spell, you may have some or all of these symptoms before or during the episode:


You have an unexplained fainting episode. Especially if the episode occurs during exercise, happens during heart palpitations (feeling the heart beat irregularly), or if you have a family history of recurrent fainting or sudden death.

Show Sources


Heart Rhythm Society. 

American Academy of Family Physicians. 

The Merck Manual.

© 2023 WebMD, LLC. All rights reserved. View privacy policy and trust info