So pleased to have discovered this forum. I've had paroxysmal a/f now for 6 years, and am awaiting an ablation as unfortunately last year had 3 brain bleeds. Medics said to me "what did I expect as I was on Warfarin! " not on any anti- coagulants now, just Flecainide which I take as pill in pocket. Was told to take it 2x daily but it made me so lethargic and I gained weight. Has anyone else had similar problems?