Personally to me sounds like a bad comedown, or a comedown that triggered some sort anxiety pattern, or depersonalization episode, that has switched around your brain chemistry for a while. I wouldn't resort to prescription drugs unless exercise, eating right, and keeping busy(very important) to keep you mind off of things. If after 3-4 months of doing this almost everyday and no improvement, then I might seek help professionally. Sometimes we put thing in our body that shouldn't be, and it takes it a while to come out of it 'alive' or 'normal'.... Hang in there you'll be alright, and you definitely learned your lesson.