ok im very healthy, athletically built, im 5 9, weigh 170 but somehow i have a heart murmur. I know about the innocent and abnormal ones but my question is how would you be able to tell (without medical equipment, ex. stethescope) if it would be life threatening. Any help ? I know it s a heart murmur because I went take a physical for a job and their doctor told me that but referred me to another. I was just wondering if anyone had any information before I got it checked monday. I d rather know a little something now than nothing.