Well friend - consider yourself soundly spanked by reality!! I want to feel bad for you but - as the councillor says on South Park "Drugs are bad - m'kay?".
THC - the active ingredient in marijuana has a half-life of about 30 days - maybe higher. It gets stored in body fat and that's why drug testing for THC is able to catch you long after that inhale you did at a party. LONG after.
Don't worry - the effects should die off soon. But it's a good wake-up call for you. Pot is stupid - I thought that kids of your era were considered the "smart generation"? LOL - well that's enough of me admonishing you I think you see it really doesn't help you and your troubles.
Your meds should kick back in soon. It's not a permanent change you are feeling - just a sort of hangover. It will pass.
Try to eat well, drink lots of water and stick to legit meds for a good feeling inside. And remember that even if a friend hands you a joint you have no idea if it's laced with something very serious (and neither does your friend) so there could be serious damage from even one joint.
Good luck to you sir - you are getting a chance to stop ADHD early and don't blow it.
Well, I could be wrong, but it sounds like the marijuana experience was one that you won't repeat...(That was my way of advising not to do it again because you've obviously seen the way it adversely affects you).
My advice to you is:
relax-- getting your panties into a twist over this will surely only make the matter worse, making it harder to concentrate, and causing you to experience a self-fulfilling prophesy (a.k.a. you'll imagine your symptoms and therefore actually experience them) drink plenty of water & get in your basic nutrients--these are essentials and will help your body rid itself of toxins and will keep your system up to par get enough sleep--it's amazing how much better it can make you feel and how much clearer your cognitive abilities will be skip your meds for a day or two (or just lower the dose for awhile) and then see how things are going back to your usual doseYes, weed affects you--for a few days. No, you're not gonna die (at least not from the weed). Take care and feel free to post any more concerns or you can pm me if ya want.