Hello- I understand your fear. You are not alone!
Are you taking Flecainide on a regular basis? I think you need your be taking some antiarrhythmic regularly but not just with an episode. Other option is to discuss with your dr ablation.
Arrhythmias are scary but since you are on meds dont be afraid to sleep. I put music on or a fan so there is a background noise before bed and I find it helps me!