I have the same condition. I was diagnosed at a very younger age with Wolff-Parkinson-White syndrome. It might be worth looking into.
https://www.mayoclinic.org/diseases-conditions/wolff-parkins...
Fortunately I don't think it's WPW in my case. Or at least, my cardiologist never mentioned it, so I assume it's some other condition that has similar symptoms.
With WPW you MUST NOT take beta blockers (AFAIR), it may kill you.
I had just plain vanilla Afib and got ablation 2 years ago - best thing ever, cured instantly.