Understanding Fainting -- Symptoms

Medically Reviewed by Carol DerSarkissian, MD on April 14, 2021

What Are the Symptoms of Fainting?

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

Call Your Doctor About Fainting If:

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.

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