wait for your echo report - if it will normal then go for stress test( either TMT or stress echo), if in echo your heart pumping power or ejection fraction is less then it will be serious problem . you can reduce heart burn- 1) slow eating, taking smaller bites. 2)take 2 glass of water half hour before meal 3) in diet more fibers and fruits 4) avoid sleeping after meal 5) avoid spicy and oily food 6) if you are obese then try for slim ( obesity increase G-E reflux 7) stop smoking 8) sleep in tilt up position 9)Try eating five or six small meals a day, rather than three big ones. Eating too much at once is a big heartburn trigger. and can take medicine (pantaprazole and mucaine gel)