I've been having good days and bad days lately. A lot of it has to do with how I'm feeling physically...if I feel bad then it's hard for me to be positive mentally, but I'm managing.
One thing that's been consistently good for me lately is my overall anger level, though. When I left the area where I was (predominantly) using in, I was very angry, at myself and at other people. My anger dissipated and I'm very thankful for that

(I was one of those people who'd get "opiate rage" very easily, although most of the time I'd manage to contain it)
It's strange how you never really realize how much drugs are contributing to a negative emotional state until you've abstained from them for awhile...it definitely gives perspective
Anyway, good luck mbc on your medical stuff. It's very hard to be happy when your own physiology is working against you...I know from experience. Hope you get better