Replying to High enough to black out?

So yesterday was 4/20 here at CU, and it was insane. We had over 2000 kids storm this main field on campus and everybody smoked themselves stupid together. Anyway i was soooooo high that i ended up just passing out twice and then coming back to conciousness seconds later (not good obviously). I was wondering if this has ever happened to anybody else? I was thinking it was because i wasn't even breathing in anymore oxygen since the smoke cloud over us was so thick....anyways...opinions?

haha besides "bro you are a huge jackass"