I have done tmt test, echo and holter in may 2024 and all reports were normal as per cardiologist. But i remain conscious of cardiac health always. I am going to gym since past 3 weeks and doing treadmill running. I run 1 km easily with any pain pressure or breathlessness but while running too i remain anxious of bpm. While doing weight training too i thinks of bpm, cardiac issue etc. I dont know what to do. This is making me very troubled. Please guide. Bp remain 110-115/75-80. No smoker.