My wife has been suffering severe joint pain for some time. It started in left hip several months ago, extending down left leg, resulting in her not being able to walk. Then her right elbow became very painful with movement or touch/. Subsequently over several months she experienced right thumb joint pain, with right elbow easing somewhat. Then right shoulder sever pain, slightly resolving, and then left severe shoulder pain. No on seems able to diagnois or give any indication of what is going on???