Start with an E.K.G, an EKG can give an indication of a blockage and give the doctor an indication if an angiogram is needed. Bypasses are not as common now as they used to be, because they can do angioplasty and insert a wall stent to open the artery, the wall stent keeps the artery open. I know that heart troubles run in families but just because your dad had a triple bypass in his 50 s does not mean that you will have one (especially today) My dad died of cancer at age 43, I had cancer at age 23 and never in my life thought that I would out live my dad, well so far I have beat him by 16 years (I m 59) but I do have clogged arteries including 50% blockage in the carotid arteries, have an aneurysm and little blood flow through my legs. Coronary disease runs in my family, my oldest brother died at 59 2 yrs ago and 10 days later my youngest brother had a heart attack at 54 (he survived). My suggestion is to change your diet, now, exercise and quit smoking, I should have followed my own advice maybe I would not be in the mess I m in. See a cardiologist and follow his advice and you should be OK Good luck to you