i puked lots when i begun (only when i smoked lots, probly to do with the fact some people rolled spliffs with a whole cigarette, now i roll 3-5 joints from a ciggy).. probly the body naturally trying to reject poison. eventually ur body becomes immune to the strange toxin insofar that sickness ceases. tolerance is a good word. if u are worried stop smoking, if u wanna get wasted like us then try alternate methods of consumtion or grin and bear it... try not to toke on an empty stomach and drink water or ur fav bevey if u feel wooosey