... specialist... says its some sort of "fat" type cyst and not causing the pain..he says I have sciatica..I am clueless about what this is. I also have fibromyalgia, and osteoarthritis, and now I am just devestated with this new diagnosis... now I think dr is going to take me off all my pain meds since I have asked for MORE recently due to new pain... which scares the hell out of me... need info and support ASAP.. WHAT IS THIS TERRIBLE NEW PAIN? PLEASE HELP