I am being weened off ms contin and zanix gradually. I did at first feel sick, and shakey. I lost my temper and screamed until I figured out just what was wrong and went back to the pain management doctor. He was wonderful and took the time to go slower in my pain meds. I am now down to almost nothing just 30mgs. The last months have been fine with 15mg reduction per month. If it is gradual, you should feel much better than what you are going through now. If your doctor will just decrease going down on the mgs. at a slower rate you should feel OK going through it. I did sweat alot too which drove me nuts. good luck and it can be done. ginnie