I puked only one time after taking a huge huge bong hit but I dont think ti was the weed that did it to me. Because the day before I puked 4 times in a row after smokin 1 cig and I smoked a cig b4 i took that bong hit... ever since I stopped smoking cigs no more puking. I dunno what it is.. Tabacco hurts my tomach/ Weed helps my stomach