Thanks Carey.
The fast HR is regular and just comes on out of the blue.
I think the issue lies with me as I have had the condition (AF) for decades, and probably longer. My original cardiologist(s) did nothing to help and I just went along with the ridiculous advice given at the time.
I'm more concerned about my heart rate variability and if anyone uses an Apple watch to check it. If so, is it reasonably accurate and reliable?
PS: My EP is excellent and is an internationally respected electrophysiologist who performs all types of ablation procedures from the most simple to the most complex and regularly performs procedures that have failed elsewhere.
He is internationally recognized as one of the world's leading researchers in the field of heart rhythm disturbances and has been instrumental in describing the mechanism of these arrhythmias and the approach to cure.