Ct angio score of 0, three negative stress echo test in 5 years, normal echo, normal event monitor low hdl,dad heart attack at 50. do i have blockage?

Tests: Given your test results you do not appear likely to have calcified obstructive coronary artery disease at the present time. If you have plaque in your coronaries it doesn't appear to be highly obstructive at the present. We can't say there are no plaques.

Unlikely: The investigations you had do not suggest any blockage. Have a diet rich in fresh vegetables, fruits, whole grains, low fat milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco or alcohol in any form.

Cath Angio: Would be the test that will give you the answer. So far your tests are all encouraging and pleading against early coronary disease. Lifestyle risk factor modification and keeping a low threshold for possible heart related symptoms will be key(s) in the medium to long term prognosis.