So, I should just ignore nearly 12 hours of my heart racing at 90-100bpm, possibly more tbh. Even with deep breathing and calming exercises etc. That's classic afib really isn't it?
From what I've read it's very difficult to differentiate between afib and a racing heart from anxiety, but prolonged episodes would probably rule out anxiety.
I haven't mentioned this racing heart to my doctor because this is the first episode of it I've had since December.