Threw up twice, once from coughing to much the other was last night. Second time using my bubbler and I was trying to snap the bowl and I sucked to hard and swallowed a mouth full of nasty ass water and the little piece of bud that got pulled threw. Emptied my stomach (non-voluntarily) 5 min later.

My guess is you are swallowing alot of the smoke rather than simply inhaling it. Or you are having throat issues and producing MASSIVE amounts of phlem (sp?) which is running into your stomach, causing vomiting after enough has accumulated. I wouldn't think 2 hits would do that in either situation unless, its an allergic type reaction. I'm not a doctor, but my guess is you are allergic to something in the weed. Or it was coincidental. Did you munch out hard after you smoked.

As far as driving I wouldn't have been able to drive my first couple times, but I've built a bit of a tolerance, and learned how to keep an even concentrated head when needed.