Had paf for about 9 months. Had about 4 episodes one treated with pip flecainide. Over past 6 weeks I have had a sinking feeling in my chest but done several ecg's and in nsr. Spoke to another af bod today who reckons this is the " impulses " firing but not getting through to start an episode. Any thoughts? Im a reasonably healthy 35 year old so my heart attack risk is low so not concerned about that but is it the af trying to start?