Health: COVID symptom whack-a-mole?

tl:dr Silly body is silly. I continue resting LIKE A POTATO. Whatever's going on in there, COVID (or something) has apparently been playing with the sliders and the lit-up buttons on my disabilities and chronic ailments. The good leg because the bad leg for several days. Really bad, pain-wise. Now that seems to be easing up a lot. The bad leg is doing something with sensations on the part of the…