Thanks so much for these A-Fib FAQs: I had no idea of the difference. All my recorded (by both the FitBit & Apple Watch) episodes have occurred overnight. In addition, the additional mRNA vaccine injury to my GI tract, evinced in dysbiosis, IBS, & SIBO-C, dovetails further with the vagal hypothesis. According to this paper (see: https://pubmed.ncbi.nlm.nih.gov/26310988/), it remains unclear whether vagal AF progresses or conveys equivalent (to adrenenergic AF) stroke risk. Whether warranted or not, I choose to be encouraged by this speculative notion that vagal AF might not progress or convey stroke risk.

Going forward, with the Apple Watch 8, I have the capability of taking a medical-grade ECG & will start doing that periodically during the day (as you apparently do with the Kardia technology). Just want to sample my daytime ECG profile.

I am extremely reluctant to seek out a cardiologist (I have no way of knowing what I am getting as I have no referral from a trusted source). Most of them (cardiologists/medical doctors) are ignorant about the effects of C19 & C19 vaccine injuries on cardiac/CV health--& even more ignorant about environmental, namely dietary --including dietary supplements, factors in cardiac health. I am fortunate in being able to interact with research cardiologists (scientists), who are generally much more curious & open than medical doctors--whatever their specialty. All the best!