Encouraged by all your replies to my first post I started to take control rather than letting the AF control my life. It was going well with the reduction in the dosage of bisoprolol, buying the AliveCor app to check ecg readings, being reassured by the online videos by Dr Sanjay Gupta, starting a magnesium supplement and trying out a much healthier eating plan lacking in processed foods. All going well until yesterday evening when I had another major paroxysmal AF event resulting in another trip to hospital.
I already had a follow up appointment booked with my GP this morning so I went along a few hours after being released from hospital. He's increased the level of bisoprolol again but this is likely to lead to the same side effects as before, but he has also referred me to an EP (and thanks to everyone who suggested this) to discuss the possibility of ablation.
I think it's going to be a harder challenge than I hoped but I'm more positive now I'm armed with information to help make decisions for myself.
So that's my advice for any other newbies - get as informed as you can to help you decide what what will work best for you.
As before, any advice and information is very much appreciated, and thanks for all that has been sent my way so far.