My email to him follows, thought it might help others in a similar position:
'From the beginning use it as a driver to improve overall health to avoid future issues.
Good news that you are now aware of it, also that it does not stop you doing things (like it did me)
Lifestyle changes will be very important (drjohnday.com/the-promise-o..., unrecognised stress has more impact when we get older eg concerns over business & wife's health & needs to be countered.
My theory is AF is rarely caused by one issue but rather a number of factors that accumulate until AF is triggered; maybe easier if you think about the analogy of a glass that fills up with unsustainable life choices until it overflows.
Initially, the tests are necessary to confirm hopefully that you have Lone AF (ie no contributory comorbidities); I was encouraged by this particularly that arteries were clear, given my cholesterol level of 7. You may have Paroxysmal AF (ie from time to time) or Permanent AF (ie all the time but not necessarily worse).
You need to find a cardiologist that you have confidence in; Health Unlocked members frequently ask for recommendations in different areas. He/She will then very likely suggest drugs or refer you to an EP to discuss ablation.
You may also wish to consider an Alternative Practitioner; I consulted one regularly after diagnosis and have recently listened to another that impressed.
Drugs are important, be aware there is a wide variance in not only what different cardiologists favour but also what works best with each patient.
Anticoagulants will very likely be suggested; the old tried and tested warfarin is derived from clover and although a bit of a faff (visiting blood test clinics) to get the right level, it is still preferred by some. Due to convenience and NHS savings, it is likely the new ACs will be prescribed, which are just taken daily with no need for blood tests. My cardiologist took me off Rivaroxaban (research in USA not favourable) and would only give Edoxaban as cheaper than others; I haven't started them yet. Apixaban though seems to be a clear favourite on the Forum mentioned above. Not sure exactly of your rights but you may be able to insist on your preference and these days in general you have to challenge with diplomacy all decisions from medics.
Lastly, I have found there is no right or wrong way to deal with it and ‘your solution’ will very likely come from various directions eg for me, i turned down the invitation of an ablation and I used Flecainide to buy me time for Lifestyle changes, then those two improved me unexpectedly so much that I haven't changed any of them.'