4 years now,I've lived with it everyday. Had all the diagnostics you listed. The only thing that helped a little was the injections. 6 of them one morning. All in my lower abdomen. It was a cocktail. Beupivicain,Cannalog, and something else. (Please excuse the spelling). But those are just a bandaid.Im currently switching doctors. So fingers crossed. I can take some pain. Broke my back 3 times, both shoulders twice, etc. But the pain from this, everyday is unreal. If I didn't have kids, I wouldn't be here anymore. Good luck, and please keep us posted. I'll do likewise.