Anonymous wrote:Thanks for all the suggestions. I will start walk run routines.

Google Galloway method. No real science to it but he is a multi-finisher marathon runner who has coached many in his run walk ways. its helpful to have a watch like an ironman or other fitbit watch that can be set to 3/1 , 4/1 or? that is the interval, you hear the watch beep you run for a minute or whatever it is set to.. it beeps again you walk and repeat. Several marathoners have finished with better times than all running methods

Anonymous wrote:Have you done any blood work? Definitely, you should at least check for anemia. Hypothyroid can also lead to a high heart rate. What’s your resting heart rate?

I'm anemic currently and using Iron supplements. No thyroid issues though.