Probably a good thing you don't remember it. I remember alot of when I has covid, specifically that my body was was in pain for about a week until my room mate, who had lesser symptoms than me said "maybe you should go to a hospital". The whole time I also had these incredibly strange dreams that I was flying around new york city for some reason... also about a week after the hospital visit I had to drive (in a stick shift no less) and pick up 3 boxes of honey bees for my very first season, and I definitely remember thinking I should not be driving, but I had to. Miraculous that I didn't hit anyone or run any red-lights.. that I know of.

The Fujita scales have always been about recorded damage due to a tornado. The only change between the F scale and the EF scale was windspeeds. The original scale over estimated speeds, and the new EF scale accurately depicts better data that was collected to adjust the speeds. An F5 and EF5 still produce catastrophic damage, same as how an F1 and EF1 will produce minimal damage.