@lenmayo, let me share the experiences I have had with AFIB. Diagnosis only by EKG in my regular annual physical exam. No perceptible heart-rate symptoms then or now, seven years later. However, two years after the diagnosis I suffered a "small stroke" which affected movement of my legs, feet, arms, and hands somewhat as well as my hearing, taste, and smell. Put on Warfarin anticoagulant and still taking it daily with monthly lab tests to confirm it's working. As in the past, AFIB is detectable only by EKG and not by any variations in heart rhythm. I also have been on a beta blocker (Coreg) since my stroke. The beast is in the closet, and I intend to keep it there by continuing my AFIB therapy. Martin