I also have Fibromyalgia, but I have been dealing with arm pain in my right arm above my elbow for about 3 months now. I had an IV put in over 3 months ago and delveloped a blood clot from it. I have been on daily asprin ever since and as I write this the pain in my arm has gone from a major painful nuisance to a large pain that is almost unbearable. I am waiting on a call from the doctor. But for all who read this and have similar symptoms. Be checked for a blood clot. I can see mine right through the skin just above my inner elbow and the vein going up from there is hard and bumpy. I seem to be much more concerned than the doctors. Question for you all, could my daily asprin be leading to the worsoning of my daily headaches. I also shake and twitch at times.