I've felt pretty sick before, but always from the munchie foods, never from the weed.

It sounds like your friends either hit way too hard and take their smoke into their stomachs, or there is a stomach bug going around. Soak your bong in soapy water, and that'll probably kill the smell.
Awill3449 Reviewed by Awill3449 on . Throwing up why the hell do people throw up? ive been smoking for 8 months baked every other day and have never thrown up. i was smoking with 2 of my buddies last night and i whip out my brand new hurricane bong and he asks for greens and i say yeah cause hes real cool, and while his mouth is still on the neck he throws up! everywhere! all over the bong and in it. and today is smells like shit even after i cleaned it. and then later on my other buddy throws up all over my spoon pipe. WHY?!? Rating: 5