Hello Judi,   First, let me note that chest pain is a non-specific marker of many different diseases, as there are many organs located in the chest cavity.  It can be caused by cardiac, musculoskeletal, esophageal, lung, or anxiety diseases.  While the fact that your pain is under both breast is somewhat less concerning for cardiac disease, any chest pain that does not stop or gets worse needs to be evaluated. And note well, there are serious causes of chest pain that are not cardiac in nature!   You should make an appointment soon with your primary care physician to diagnose the cause of your chest pain under both breasts.    If you have not already, you should review this website's review of risk factors and heart attack symptoms in women.   Heart disease risk factors, such as increasing age, hypertension (high blood pressure), diabetes, being post-menopausal, hyperlipidemia (high cholesterol) increase the risk of having a narrowing of the coronary arteries which supply the heart with blood.  These narrow arteries cannot supply your heart with enough blood, especially when your heart needs more blood such as when you exercise, walk, go or up stairs. When an area of your heart does not receive enough blood, it cause chest pain and can cause your brain to make you sweat, be nauseated or vomit, and feel short of breath.   Again, to have your chest pain fully evaluated, please make an appointment with your physician.  And as always, if your pain does not improve, you experience new symptoms, and certainly if it gets worse, go as soon as possible to your local ER.   To your health, Neil MD