Hello katgoul9,   Thank you for describing your symptoms with detail; it certainly helps with our discussion.   While it is impossible for me to say for certain the cause of your symptoms, I think your physician who can examine you, knows your history, can order lab tests can best comment on the cause of your symptoms.   That being said, given your symptoms, their lack of relationship to exercise, and your age do seem to indicate that your chest pain is not likely cardiac in nature.   Concerning symptoms for cardiac causes of chest pain included left-sided pain that is described as pressure or tightness.  Also, pain radiating to the jaw or arm, nausea or vomiting, shortness of breath and sweating are signs that your heart might be causing your symptoms.   Symptoms that are less concerning for cardiac causes of chest pain include pain reproduced by palpation, pain caused by recent trauma to your chest wall, or pain that becomes worse or better depending on the position of your body.   You are correct to continue to follow up with your physician!   Hope this helps.   To your health, Neil MD