Do I need to worry about sca/ha with a normal ekg, echo, stress test, chest xray and good blood work? Scared and worried! High anxiety! Please advise!

Normal test. With all those normal tests you should be anxious over something more likely to happen, like paying taxes or santa claus running out of feed for the reindeer. Eat a mediterranenan diet, get half hour a day or aerobic exercise, don't smoke and enjoy life..