I keep having pain in my chest. It comes and goes, more intense sometimes. I called 911 went to the ER. My EKGwas normal as was blood tests, chest x-ray. I had no other symptoms. Before I left the doctor came in and put pressure on the left side of my chest -- it was really sore. He thought it might be caused by the wires, etc from when I had my aortic valve replaced in 2002. I ve had discomfort today on the left front side, but now I have no pain except for the right side of my back. I went to the ER a week ago -- I m 68 yrs, female. my email is YYYY@YYYY . Thanks.