Chest pain behind sternum. Ecg heart enz echo cardiac ok. Dr say reflux with allergy. Should I worry about heart? Normal blood pressure and heart rate

Don't give up. It's normal to be concerned about your health, and to worry why you feel bad. The possibilities are numerous--ranging from acid reflux (i.e., heartburn) or a peptic ulcer to pancreatic or biliary disease ; even stress. Alarm signs include weight loss, bleeding, recurrent vomiting, significant tenderness. Whatever the cause, you're appropriately anxious about it and should seek additional help.