weed is an antiemetic. Translation- it keeps you from vomiting, that is why so many people take it when they are in chemotherapy.
If you are feeling sick it is probably just paranoia. Throwing up in public or in front of other people is a huge fear for many and I can see why you might feel dizzy/panicky/sick while smoking if you are not relaxed.
tip 1: chill out, you won't do anything too stupid while you are high. Remember that your friends are high too so even if you are a little retarded they will forget about it tomorrow. (just smoke them out a few times for instant hero status)
tip 2: Smoke slowly, hit it once every second time around the circle and don't hold in your hit. (holding it in is actually bad for you; you get all the thc's in the first 3 seconds of inhalation)
tip 3: if you start to feel wierd, try talking yourself down off the ledge a little. (I'm just high, everything is ok, nothing bad is happening, I don't feel sick, all is well with me)
tip 4: if you smoke out of bongs or pipes, clean them once a week, sometimes that old grunge makes you sickly.
