Two nights ago I smoked hookah, trying out 2 different flavors and nothing happened. The following day I smoked for a longer amount of time, with both flavors again, but about a half hour after smoking I began to feel nauseus and started uncontrollably hitting my head against the counter (not hard but I was unable to stop and thought someone else was doing this to me). Then I fell on the floor and afterwards felt fine besides being sweaty. My doctor thought this must be an allergic reaction to the hookah but I have smoked before, and as I said have used those flavors previously. Would the length of smoking cause this? I need to know what I am actually allergic to.