pain after back surgery

I'm 41 and herniated 4 disc 10 yrs ago. 5 surgieries with fusion in my lumbar area I'm still having severe pain. I take 45mg of morphine sulfate 3xa day and percocet for break through pain. I have tried morphine pump but would stop breathing, spinal stimulator but lost use of legs, injections, patches, all with no help. I have severe low back pain going down both legs but worse in right. I fall at times when my legs go out so I use wheelchair on really bad days. Doctors I have seen states there's nothing else that can be done. I refuse to accept that with the technology out there these days. I don't know how much longer I can take this!!! I live in upstate S.C. Does anyone have any suggestions? Please!