I had this a few years back my prognosis was wolf parkinson white syndrome where i had an extra electrical circuit in my heart, rushed into A E quite a few times with a rate of 240 bpm Quick shot of Adensin and hope for the best. Have now had an op called the ablation where they feed a electrode in your groin and float it up into the heart in a vein?arterty? and burn away the circuit, solved my problem
Should not worry just take less stimulants on board ie caffine sugar etc

Have fun PaulT