Hi doc, Two days back I felt an abnormality in breathing,even I had a chest pain for 5mins,plus some pressure in my left shoulder.Before this,the same day i had 15 smokes plus 10 coffee. I went to a doctor,he took ECG,later echo,he finally said their is an abnormality in ECG. After hearing that iam really scared.I never had all this kind of issues before.I am always a fit person. I am 24yrs old.Give me a good suggestion please.