running (and anxiety) increased epinephrine (adrenaline) that will speed up your heart. because you are so concerned i would strongly suggest that you see a cardiologist and undergo an exercise stress test. an ekg while you are running an a treadmill. this test will show if you are showing any signs of an irregular heart rhythm or other exercise-related cardiac problems.
heart question. urgent answer needed please. i am 20 yrs old. i have anxiety. today i had a scary episode. i was playing soccer i stopped when running and took a deep breath. with this breath i felt a little fluttery feeling in my chest. i continued running and it went away. i have done ekg before. no other symptoms with this flutter except i started to get very anxious since i have a paranoia about heart related problems. i also have read about sudden cardiac arrest so naturally i was very scared. any reassurance is welcome. thx!