What does it mean when you laugh hard and get dizzy?
What does it mean when you laugh hard and get dizzy? Some people have a sensitive vagus nerve and can get dizzy or even faint when laughing, coughing or straining on the toilet. It is usually not dangerous unless you really pass out when this happens. Can laughing make you faint? Laughter-induced syncope is an unusual but recognized form of situational syncope (fainting) likely to have a similar pathophysiological origin to tussive syncope. One reported case occurred while a patient was watching the television show Seinfeld, and was given the name Seinfeld syncope. Why have I suddenly gone dizzy? Common...