I did some searching and couldn't really find any information on marijuana and clen, there just doesn't seem to be much info out there on the subject.

As far as the clen not being legit, I think your fine. You said that you "feel my body temp increase, I get cramps easier, I perspire more and I also feel more energy" which tells me the clen is working as long as your not stacking it with something else. The body temp increase and perspiration are directly related to the clen working and the cramps are actually a pretty nasty side effect depending on how severe they are. Sounds like you got legit clen, you just seem to handle it better than others.