Hi Terri,
Gosh this anxiety is hard work isn't it? So many of us here can relate to the symptoms you describe, if you have been checked over by your doctor i am sure that they are anxiety related. if we had a blood clot, it would not go away at all (and there would be other symptoms) if it were our heart it wouldn't go away, it would worsen. It is so easy to say these things and i know when the pains strikes we can take a lot of convincing, but i have found the less frightened i am, the less the symptoms appear. sorry not of great help, take care and keep in touch xxxx