@walkerbragman This past May, I had COVID for the 1st time. It was a “mild” course, and I thought my “mild” breathing issue over the two weeks that followed was just a part of my recovery. Then, one day, an uphill walk ended in significant breathing difficulty and dull pressure in my chest. An ER visit later, I learned I had low circulating oxygen and disseminated clots in both lungs with a D-Dimer result of over 9,000 — life-threatening conditions! I remain on a blood thinner.