Meb90

Every time I start to laugh it feels like my oxygen is suddenly cut off and I start to pass out. I also have tendency once a week to get light headed when I get up from a sitting position to quickly. Do I need to worry about this. I do not smoke but am overweight.

[dawnd1988]

I know its hard not to worry about stuff even little things.  Are you on any medications? sounds like a side effect, i started out on too high of a mg on a mood stabelizer which made me dizzy then i blacked out cold at work.  Curtain medications cause heat exhaustion, dizziness, and fainting.  Also get your blood sugar checked.  Diabetes can cause that.  Do you drink enough water? Could be something minor, its just strange that it happens when you laugh.  Wish i could help more, good luck