Please help!!! I have been experiencing sharp pains in my chest, primarily the left side, on and off for three and a half months. Now I am also experiencing shortness of breath. My chest fees extremely heavy, like there are about twenty bricks on it. I've had three EKGs, two stress tests, one echocardiogram. All were normal. Also, two x-rays were normal. ER doctor said I don't have a blood clot. I have been to four different doctors and none can figure out what's wrong.