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...
https://www.mayoclinic.org/diseases-conditions/wolff-parkins...
I had just plain vanilla Afib and got ablation 2 years ago - best thing ever, cured instantly.