I am so sorry that you have had such a terrible time. You need to go to your doctor and tell her or him everything you have just written here. When I read something like "circling the drain" I get very worried. It sounds like you doctor has been somewhat sympathetic but you need to lay it all out. I am not sure what more can be done for the pain and I am not a doctor but it sounds to me like you have a lot more hard stuff on your plate than just complications from surgery. Please be good to yourself and do reach out for help.
Laurie