I constantly feel very tired from my fibromyalgia, so here and there I try amphetamine. It feels good for a while not too be as tired but when it starts too wear off I go into this strange stressed and depressed state where everything goes dull, Is there something I can do about this. It'd be nice to use here and there to able to focus better and enjoy not being as tired but if I comedown like this everytime I'm not sure. Can someone tell me what's going on ? :/