I am having trouble trying to figure out what is causing my chest pain. When it gets even slightly warm in the house or outside I feel a tightness in my chest, very tired, and I have almost an anxiety feeling in my chest. I don't get much exersice, but I've done enough in my life that I do not think it is asthma...unless it started within the past year or two. If anyone can give my any suggestions as to what is causing this feeling please let me know. Thank you.