When I first started smoking back in high school the highs were pretty intense, kind of like how you described. In my early days of smoking I would have to lie down because I felt so lightheaded. Thought I was dying but of course I was fine. I wouldn't worry about it unless you're been a regular smoker for a while and just all of a sudden started expereincing this. But even then, it could just be that your buddy has some killer stuff.

Do you play for a D1 school?