silverlining48, I don't know if you wear a Fitbit but I did note you joked you had the heart rate of an athlete. A Fitbit, when you check if your heart rate is ok, does tell you the low rate is 'excellent for a person of your age' and in the athlete class. It lulled me into a false sense of security until it fell so suddenly I felt I must get it checked. So, everyone who wears a Fitbit beware. Better to check with the medics before congratulating yourself on your athletic fitness. Glad you don't need the pacemaker but keep an eye on it.