Thank you for posting. I was mistaken, I thought that you were only taking Lyrica and Gabapentin. With what you have been on I doubt that pain medication will help you unless it is one of the newer types with the pump implant. It would certainly be worth exploring that possibility.
I am currently getting decent relief from the MS Contins, 30 mg. 3 times per day, but I do not have all the complications in the back that you do.
I hope that you get some help and relief soon.