Have you considered an ablation? My husband had two and each one worked for several years. My sister had one a few months ago because she didn’t want blood thinners and, like you, hers wasn’t frequent. So far she’s fine. I hope you’re right, but when the occasional AFib increased with me it was sudden. Instead of a prolonged episode I’d have many short one, so I didn’t always realize it had happened. So, please take care.