HI Starving,
Welcome to PC! Huffing is very hard on the brain and other organs. Pot can cause all that you mentioned it does not. It has caused you to have a stroke and panic attacks.

Glad to hear you're off all the illicit drugs. You do need to see a medical doctor, preferably a psychiatrist who specializes in addictions, for assistance.

Good luck on your road to recovery and please keep posting to let us know how you're doing! There is a substance abuse forum on PC that I hope you will check into. Lots of great people here to provide support.
Take care,
Okie