Flame,
I can sure relate with ending the numbness and starting to feel again. Suddenly, familiar emotions are five times as strong, and I feel all kinds of things I don't remember ever feeling before. Sometimes when it gets hard it is so tempting to go back to something I know will make me feel better. I'm glad to hear that you are appreciating you life and that you are motivated and able to do something about it. It can be a struggle, but worth it, I think.
Pandora,
Have you considered a pain clinic? Some of them combine detox with pain management techniques. I guess you probably know more about it than me, being a nurse. My last wife used oxycontin for a long time following multiple back surgeries, so I am familiar with how scary it is to contemplate getting off of it. With the combination of using it for legitimate pain management, and its numbing effects on PTSD symptoms, I would definitely recommend that you have a comprehensive support system in place when you do decide it's time to stop.