Posibleng Mga Sanhi para sa Exertional na Pananakit ng Dibdib Diabetic Angiopathy Angina Pectoris Coronary Atherosclerosis Unstable Angina Paulit-ulit na Pulmonary Embolism Aortic Valve Stenosis Lymphangioleiomyomatosis Chronic na Thromboembolic Pulmonary Hypertension Pulmonary Arterial Hypertension