Man, i know exacctly what your going through. I cant say that i got annoyed with it tho cause i loved every second of it. I figured it never go away and id be PERMANANTELY HIGH, lol. Didnt happen though. My bro told me to chill and just think bout different shit. Trust me, the more you think that you have soemthing wrong with you, the more your going to freak out about it. Remember, weed is basically harmless except for ur lungs so... youll be fine. And i wouldnt go to a doctor unless it lasts for a lonnng time.