Neural: That's an interesting point. I had not considered the BP/vasodilation aspect of it, and it is true that I had smoked a joint within about 5 minutes which is fairly quick.
jamie: You could be correct. I had not thought to search old threads for this subject. I'm going to do that and try to find parallels between other's experiences and my own. That may fill in another piece of the puzzle.
It's weird how a substance that you think you know everything about can sneak up and surprise you like that. I think, like you, I'll be sticking with the one-hitter from now on. Besides, it's more economical.
MomentOfTruth: The guy I got it from is smoking the same stuff. I asked him about it and he hadn't noticed anything strange.
Anyways, I much appreciate the help I've gotten here from my fellow travelers.