What causes pain in left side of chest under breast?
Patient: pain in left side of chest under breast  I've had pain in left side of chest since last night ..Sometimes feels like something is weighing my chest down. And next minute feels like someone is ripping my chest open.. I do have asthma too but it doesn't feel like that.. Very uncomfortable to deal with can't sleep.. Doctor: Thanks for your question on Health Care Magic. I can understand your situation and problem. Left sided chest pain with pressure and heaviness in chest is commonly seen heart diseases like angina or coronary artery disease (CAD). So we should first get done ecg, 2d echo and stress test. If all these are normal than no need to worry for heart diseases. Sometimes stress and tension can cause similar kind of symptoms. So avoid stress and tension. Be relax and calm. Don't worry, you will be alright. But first rule out heart diseases. Hope I have solved your query. Wish you good health. Thanks.