I don't feel like myself at all.. please help me!?

So this all started after i ate weed brownies... but i do not think that that has anything to do with what's going on unless it could permanently damage my brain. So here are my symptoms: I can't sleep without taking a muscle relaxer, this sleep is never restful, i feel jumpy, i have no time perception, when i raise my eyebrows i feel tight in the back of my head a little bit, i use to have pressure but that has kind of gone away, i feel like i cannot remember anything, my personality has changed, and you know how you usually think about what you are going to say before you say it? well i feel like i don't think about anything anymore, I don't even have an urge to go outside or anything, oh and i love boys, well i use to and now well i don't really feel anything, i don't feel happy or sad or anything. I just feel out of it and i want to go back to being the old me, please help.