These auto immune problems seem to lump together. Mine arn't the same, but I have a number of them as well.
Please get checked for crohns disease. This too is an over reaction of the immune system. It would account for additional pain. sweating, hot and cold and the diarea. Crohns is inflamation in the GI tract. Sometimes over looked by doctors. I am so sorry you have all this going on in your life. I hope there can be more help for you. I wish I knew more to help you. ginnie