Suggest Treatment For Severe Pain In Back

I have been on Opoids for years for a major back/spine injury. Im through with the Pain Management docs making thousands off of Nerve Blocks, Laser Zapping of Nerves, Temporary Morphine pumps, etc. I am on my own removing myself slowly from 150 mcg Fentanyl Patche s changes every 2 days and taking Oxycodone 30 mg..every 4-6 hours. I bumped myself from the 150 mcg Fentanyl...10 days ago NOW down ro 100 mcg. ev. 2 days....and also am attempting to NOT take any Oxycodone at all. I feel certain I am in withdrawals....Is there ANYTHING I can purchase from a pharmacy to help me while I am having such a terrible terrible time these last 2 weeks. My pain management physician INSIST...that I am not a candidate to go off of the Narcotics. OF COURSE...he is NOT going to help me get off of thiese narcotics. He would be losing an extreme amount of money yearly for what he charges for his monthly visits I have to have with him. To say nothing of the USELESS procedures and many times he has put me to sleep in the operating room. PLEASE...is there any Home Remedy...to help me with the WITHDRAWAL FITS and nausea? I feel like there is an animal eating or knawing at my spine, shoulders and stomach. I want OFF of the narcotics ...but have NO INSURANCE to go to a facility for help. My understanding is that the centers just take you off of the Narcotics and put you on Subboxen...(a whole new narcotic). So it seems they would be switching me from the Old Time Narcotics....to just another NEWER NARCOTIC on the market. Please...can you suggest what may HELP or STOP..this Pain I have been enduring? Thank you, Mrs. Osborne Florida