from 17 to 21 i have drank heavily, almost everyday, about 4 months ago i stopped drinking i get these funny heart beats like skipped or extra beats, i have had a ecg and heart scan, blood tests and a chest xray all normal i am worried drinkin might have caused serious damage, i have a holter monitor on wednesday till thursday what do you think these beats are? thanks for the awnsers so far, i think the dr would have heard a murmor, not only wen im stressed, most of the time