My father and grandfather died of heat attack at the age of 52 and 60 respectively. My uncle also had a heart attack at age of 35 but survived. All these 3 where good smokers. I am 26 years old male obese but do not smoke or drink or anyth8 ng at all does walking regularly and vitals are normal and checked ecg multiple times last one 4 months which came back normal. My problem is I am so much afraid about heart disease and fears that I might collapse. Even a mild pain on upper part makes me uncomfortable that I rushed to ER multiple times and doctors said its anxiety. What should I do. Its affecting all aspects of my life. Pls help how often should I do checkups. What should I take care of. I have body aches on upper body particularly on left side which makes me feared. Pls help.