Hello all, I have noticed recently, during my weightlifting routines at the gym, that I will occasionally get a fluttering sensation in my heart that lasts about 10 to 15 seconds and occurs randomly while
lifting weights or doing abdominal exercises, but oddly enough never during cardio
workouts such as running or swimming (chance?). These "flutters" are quite worrisome, as I feel as if my heart may not recover it's consistent beat sometimes.