This is only a suggestion, but certainly something to spare a thought for. Many of us with AF either knowingly or unknowing get very stressed. That stress in turn has a huge effect on our nervous system and can produce a myriad of other problems. So much of this is held in our back muscles, and although will give us, in many instances, no pain it will without doubt affect our balance, ease of movement and general well being. Exercise, whether it be yoga, cycling gym will of course help, but in my humble opinion a monthly visit to a good, and I stress good, osteopath, would be of enormous benefit to those of us who struggle with this wretched thing.