Hi, I read your history in detail. By loosing ten KG you have not mentioned how much you weigh now and have reached normal weight for your height? What happened to cholesterol and triglycerides after diet and exercise? If your blood enzymes and EKGs are normal that means that you do not have coronary heart disease leading to angina like pain on exertion. Your heart skipping a beat can be normal also. An echocardiography & Doppler examination will easily exclude the diagnosis of valvular disease but it should be done if after cardiac auscultation by a medical specialist suspects it. Your chest pain can be due to gastro-esophageal reflux or hiatus hernia; in these conditions acidic contents of your stomach spill over to your food pipe(esophagus). Therefore, you need a medical specialist s consult who can competently plan course of action for you. With Best Wishes Anil Grover Cardiologist