When I run or do any other intense cardio exercise, I experience a buzzing/tremor like sensation in my chest right where my heart is. I have heart palpitations quite often while at rest, and I also have a heart murmur that i'm undergoing tests for with a cardiologist, but i don't usually experience any symptoms while exercising. This has been happening for approx 2 weeks now.
I'm 28 female 5'7" and 135lbs. I eat healthy and exercise.
Any anwers or thoughts are very very very much appreciated.