Answer:
Many, many things. The first consideration with chest pain is always heart disease such as myocardial infarction (heart attack). In this scenario the chest pain is called angina and may be associated with left arm pain, jaw pain, sweating, palpations, &/or shortness of breath. Other causes of chest pain may include GERD (acid reflux), hiatal hernia, costochondritis, aortic dissection, lung disorders (pleurisy, pleuritis, pulmonary embolus, panic attacks, or referred pain from other organs)