I went through the same situation several months ago, so I know how you're feeling. At first it was hell...I couldn't eat, couldn't sleep, couldn't sit still. I was always nervous, always cold, always sweating, and I'd wake up almost every night soaked. I stopped cold turkey though, and I found that exercising worked VERY well and made me feel human again. Working out releases endorphins in your brain, which are your body's natural painkillers, and they bond to your opiate receptors just like
Norco/Vicodin/etc does. But hang in there, just take it one day at a time. Do ANYTHING you can to get your mind off the fact that you're in withdrawal...play a video game, read a book, go see a movie, just do SOMETHING to keep your mind distracted. Also,
tramadol can act as a good way to stave off serious withdrawal symptoms, and it's addiction potential is extremely low; I was prescribed tramadol for migraines for over a year, and I never once experienced any sort of withdrawal.