If I smoke more than one hoot straight out of a pipe I get sick - after a while I have to close my eyes something wicked, but when I do close them it feels like I'm spinning in every direction really fast, so I fight to keep them open, and I can't, and the whole nasty cycle continues until I end up stumbling to the toilet and doing my thing... It took a while to figure out that it was the ash that did this, so now I just do bong hoots and I haven't had a problem since. I also kept swallowing hoots, so that was probably another part of the problem.