@pcka: I have heard of people using stem cell for treatment of shoulder & back pain. In both cases they went somewhere in CO but I don’t remember where. Those two people swear by results, but pain dr and Ortho surgeon advised it was expensive & largely ineffective. Difficult to know what to believe. I sympathize with you though..,.I’ve about run through the gamut of drugs available. Right now I’m taking Neupro but it’s effectiveness is wearing off & it has side effects that aren’t great: dizziness, headaches, memory impairment & they’re pretty expensive. I know I offer no solutions, but I hope you get some relief and soon. It is life-altering isn’t it?