D-Day, my diagnosis day, was March 11, 2019, just 19 days before my 55th birthday. It was the day everything changed, when I went from a ‘normal’ guy to a guy with a new normal, and the very narrative of my life changed dramatically. It was a slow work up to a final diagnosis, and my story started to change in my head in the several weeks leading up to March 11. But, to get there, I have to go back even further. Twenty-five years ago, my feet and knees began to tell me that I needed an exercise regimen that didn’t include running, so, like many others, I got…