ECG means that there is something wrong with your Heart's capability to cope up during exercise due to heart rhythm abnormalities or a blockade in the blood vessels supplying the heart and it requires further evaluation with stress echocardiogram
or coronary angiogram to predict the future risk of heart attack
. Mild mitral regurgitation
is completely harmless but it does not mean that it is normal and present in all individuals...
My wishes for your quick recovery