Chances of a 36 year old female having sca?! no family history of sca..had echo,ekgs and stress test back in 2013; only issue i have is my weight. im scared and the fear is debilitating. need reassurance please?

I am presuming that you mean coronary artery disease. Pl use full term to avoid confusion. If you have any symptoms see a cardiologist. If not have your MD do an EKG for ressurance. Eat a healthy diet, and do some exercise. you should be fine

The risk for sudden cardiac arrest in women is around 2.5 in 10000/ year in a study done on post menopausal women, there should be a reason for why you are obsessed with it, either events that affected people around you or witnessing such episodes. Treating your anxiety would be best and psychotherapy should be part of it.