Hi i have an important quesiton. Since the pas few weeks i have random moments that in my forehead it starts to feel so nice almost like im taking cocain or speed(first time experience kind of feeling) But i took drugs in the past. (3months of intensive amphetamine use) i took once some cocain but never touched it again. And after that i stopped drinking, but i just kept on smoking weed. (dutch weed) High quality stuff. But now im trying 2 stop in the last few months, my use has dramaticly decreased. and im clean for like 2 weeks now. But the nice experiences keep coming and they are new aswell. and the feeling is starting 2 spread though my head but its only in the brain that i feel these things. and the feeling (these are now daily) and the feeling also gave me a small headache for like 5 minutes. but then it disappeared and still the feeling keeps on coming. what could it be?