Sorry you are having to go through this. What kind of doctor evaluated you? What kinds of tests were run? Some things are not that easy to diagnose. It may take some time and perseverance. Did your joints get warm and red? This is just too vague. I hope someone else will come in and help out. But, maybe, you could give a little more info.

Also, welcome to NT. There are lots of good, caring, knowledgable people around here. Check out some of the other forums, and do some reading. You may find someone with similar problems, that can help you. Are you on any medications?