I was diagnosed with A/Fib by my Apple Watch, and both my cardiologist and family doctor missed it. You're right; doctors seem not to take A/Fib seriously. On 13 November, I had cardioversion, which succeeded in zapping my heart back in sync for four days, then back into A/Fib. I'm now considering the abrasion procedure. My Ph.D. nurse practitioner daughter-in-law says A/Fib is common, not to worry about it, throw the watch away, etc. My main issue was extreme fatigue, which is common with A/Fib. My VA doctor prescribed Metoprolol, 25MG daily, eliminating the fatigue almost immediately; plus, my watch now gives off the A/Fib alert about once or twice daily, rather than eight or nine times as before. I am age 81 and a male. My NP daughter-in-law was puzzled that I wasn't put on Metoprolol immediately after the A/Fib diagnosis. I wish you the best!