i see where the darvocet can cause
myopathy - not sure if that is what you were experiencing or not. since meds can affect each person differently it would really be hard to say - i would just avoid darvocet from now on.
i will admit i haven't been reading this thread, so i don't really know what's going on. i guess i am a bad person, but i didn't want to read a medical question when i am off the clock - had enough of that last week (insert smiling smiley here)