I've been taking Darvocet N-100 for about 3 years now for fibro pain. The pain has been so severe lately that I'm lucky if the Darvocet takes the edge off. Has this happened to anyone? I'm wondering if I need to move to different or stronger pain pill. I hate taking them, but there's no way I can get through a 45 hour work week without something...and Tylenol and Advil give about as much relieve as a gumdrop does. I take trazodone for sleep and it's not working as well either. I think I've been taking that for about 2 1/2 years. It takes me forever to go to sleep and I'm starting to do the jerking movements in my sleep which as all of you know...wakes me up and I have to start all over again