ECG abnormal, TMT +ve & normal CT angio.

I had a very mild chest heaviness/tightness on left part of chest that would come for 2 seconds and then go. This happened 10-12 times on Day 1. I consulted a physician and he recommended to get an ECG which came borderline abnormal t wave. He then recommend TMT which came positive and CIMT came negative. After that I was referred to cardiologist and he recommended CT Coronary ANGIOGRAPHY and it was normal with 0 calcium deposits. And doc said nothing to worry. Any recommendations? CT Angio Report- Left coronary artery: Normal Trifurcates into LAD, Ramus intermedius and circumflex. Left anterior descending coronary artery: Normal Type III vessel: Normal. Diagonal:Normal Ramus intermedius:Normal Left circumflex coronary artery:Non dominant continues as a OM normal. Right coronary artery:Dominant;appears normal Posterior descending coronary artery:Normal. Posterior left ventricular artery:Normal. IMPRESSION Normal study of epicardial coronary arteries. Calcium Score is 0