I have been advised to adjust my level of activity and exercise according to my symptoms. I am finding this really hard to judge - my symptoms are mainly fatigue. It may sound daft, but I don't know if I just have to work through the fatigue or if I am at risk of placing too much of a strain on my heart? I ocassionally experience chest pain and ease back if this happens. I am in permanent AF but ventricular rate is slow due to disease in the electrical pathway, so I don't experience symptoms most often associated with AF. I would be grateful for any advice anyone has about activity with AF - I am less active than I used to be but family and friends think I am still overdoing it!