OxyContin and back pain

I HAVE BEEN ON OXYCONTIN FOR 2 YEARS AND I HAVE TAKEN EVERY OTHER PAIN DRUG BEFORE THIS ONE AND NOTHING WORKED LIKE THIS DRUG.BUT I RAN OUT ONE DAY AND WHAT WITHDRAWLS.I WAS SWEATING,CRAMPS IN THE STOMACH,MY LEGS WERE GOING CRAZY,NAUSEA,LOTS OF PAIN AND EVERYTHING BOTHERED ME,EVEN THE SMALL THINGS.I HAVE CAME OFF OF ALOT OF PAIN MEDICATIONS COLD TURKEY AND NEVER HAD A PROBLEM WHICH INCLUDED DEMEROL,MS CONTIN,PERCOCET AND MANY OTHER MEDICATIONS .THIS IS A GREAT DRUG FOR MY BACK PAIN BUT IT IS THE WORST MEDICATION TO GET OFF OF IT.REGRADS MR.COOK.

I have been taking 30 mg. of oxy., 3X daily for over 2.5 yrs. I hate this stuff but I don't believe I could live through the back pain without it. I have severe constipation problems, weak/tired all the time, and my stomach is a mess. I can't eat anything like I use to, nor does the food taste as good. I would like to get off this stuff but the withdrawals are so bad that I sweet, my nerves are shot, and I really get angry at the slightes things. What can a person do? Your comments are appreciated.