Does any one else use Butrans Patches??

I am 20 and I have ddd and secondry scoliosis, I have tried many pain killers that just don't work. The Butrans Patch is the only thing that helps with the pain. I have been told by my consultant that once the pain gets to bad to have disc replacment of the two lower discs in my spine. The only thing is the patches make me feel awful. This is my 5th week on 10 and things have got better but I feel like poo all the time and its really getting me down. Does any one else feel like this or can you tell me if it gets better? If it doesn't I don't think I can use it anymore :-(