I have officially hit the 72 hours mark clean and sober from a newly formed heroin habit (1-2 bags a day), but i had an on and off (more or less always on) at least 120mg of oxycodone and upwards to 240mg for the last year. Since August, I have been using anything to keep me from being sick (pieces of suboxone, dope, oxy, etc). I have only used .25mg of xanax yesterday at around 5pm. What can I expect from here? The soreness isn't as bad, but still way anxious, no energy, and pretty mild restless legs. Anything I can do to alleviate the finals stages of the first week and beyond? I can get tramadol, but really don't know about using it 72 hours in. Last time I got clean (which was for a month), I had access to taper with suboxone and extreme amounts of xanax. I'm trying to use xanex as a last resort, I want to get my shit together.

But getting clean and staying clean is so worth it.. I remember looking over at a good friend of mine, when we were totally physically dependent, just shake his head and say, "worst thing in the world" about having to take that shit just to feel ok. You can and will do this, I feel better now all the time than I did all the time when using. Here are some medications that can help significantly with the acute withdrawal. Aso as Cancerdead said please stay away from the tramadol and every other drug that interacts with the opiat receptors, we need those to be unstimulated and shut down to get out of acute withdrawal, every time we use anything that affects them we may receive some relief but will end up prolonging the acutes indefinitely. Unfortunately there is no real way to not pay the piper when we exit out of this lame ride. People that use another opiate no matter how weak seem to just prolong their misery or end up physically dependent on that substance.. this includes loperamide. 
don't be discouraged you though. You made it 100 hours and that's an achievement it's self. You can do this, if I can make it...what? I think it's day 50? I don't remember, you can make it too. You just have to want it bad enough, you can't try to get clean for anyone else but yourself.