And I for one am so glad you are still here with us, CD!
That's why My physician had me do a Coronary Calcium scan. It is a low cost way to detect blockage. I've had two of them and I think the test cost me $150, was done at an outpatient facility in less than an hour. It might be something folks with no symptoms and family history might want to ask their physician about. http://www.mayoclinic.org/tests-procedures/heart-scan/details/why-its-done/icc-20201897
I wonder if the reason so many of those people that have a heart attack shortly after having an excellent checkup end up jarring loose plaque off the walls with a stress test!