When i was little my doctor found a slight murmur. He said when i got older i would grow out of it. Its still here i have had ekgs and a sonogram done. Everyrhing normal. But before that my new doctor said she can hear a slight murmur in my neck . But sometimes when i bend down to pick something up really fast it beats fast and irregular. Fluttery. But only sometimes. I do smoke but im definitely done. Tired of panicking. And it will flutter weirf most of the time?