How does one cope with this. Until relatively recently I used to keep myself fairly fit and whilst I realise I am in my 60s and not as able as in my earlier years, there is more than enough out there to present and enjoy the challenges. However of late I have become fearful of the feeling of the shortness of breath and fast beating heart that comes with exertion, all I feel physiologically linked to this wretched fear of provoking an AF attack. To ask how one gets over this, will give answers of strength of purpose and not letting it get the better of you etc., but it has and it does. The less exercise one takes the less fit you become, and the more difficult the day to day activities are to achieve, a vicious circle. And worse, the realisation that you just don't have the courage needed to push through this is so frustrating! Any thoughts?