Hi Kathy, I was having the same thing that you describe. Went through all the testing and did find out that I had two small heart attacks this past summer. I had a really bad time with the heart meds, they really increased my pain level. Finally my PC doc put it all together. I was taking elavil since WC had decided they were no longer going to pay for my Cymbalta or any other anti-depressants, and my doc said that she had two other patients on elavil that had had the same heart problems and this was a very rare reaction to elavil. She gave me some samples of Cymbalta to replace the elavil and voila!! Most of the heart problems resolved. I do hope that your tests come back well for you and you are certainly in my heart and prayers. Lisa