i've been smoking for like a year, and i still get like that. i think it has a lot to do w/ my personality though, bc i'm always an idiot and always laugh and joke around when i'm sober. I can laugh for like 2 mins straight, feeling like i cant breathe almost everytime i smoke,...yea i laugh a LOT. but it also depends who i'm with. that has a lot to do with it. one of my best friends that i smoke w/ (she smokes all the time too).. we CANT control our laughing and stupidness when we are together. its the best. other people i laugh with too, but theres those 2 or 3 people that i cannot control my laughing with (mainly my best friends). when i get those laughing attacks, i feel like everything is in slow motion, but i dont feel like im in slow motion during my whole high... but at some points it feels like that. i also say STUPIDDDDD things too. so dont worry if your friends are acting pretty normal.. some of my friends are like that when they are stoned too.. the other idiots.. well.. their the best to be high with laughing is the best