 [ Symptoms ] 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 [ Disease ] 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