Thanks for your question on Healthcare Magic. I can understand your concern. You are at high risk of heart disease because you are having diabetes, dyslipidemia and strong family history of heart diseases. So we should definitely rule out heart diseases for your symptoms. Ecg can be normal in some patients. So normal ecg is not always guarantee normal heart. So better to consult cardiologist and get done stress test and angiography to rule out coronary artery disease (CAD). You should strictly control your diabetes and cholesterol. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.