A member asked:

Why do i feel dizzy or feel like i am going to faint when i have to go poo? this is only on occasion . not always.

A doctor has provided 1 answer

Family practice : When you bear down , called a valsalva maneuver , your blood pressure can drop , also temporarily decrease oxygen to the brain. It makes you light headed if you have to strain a lot. See your dr if it persists.

Answered 7/16/2015

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