Some other news.
My legs are improving a bit faster than I expected. I'm going to have to be careful not to overextend things like last time. I also need to buy some elastic exercise bands because there are muscles that have to be stronger than walking alone will soon get them, muscles that have to be strong enough to deal with sudden overload--notably the muscles that keep the ankles from rolling inward. (Supinating?) I'm also making a point of getting more protein in my diet.
If I have reason for a multi-day drive, I'll probably be ready by late July.
I just did a quick pass through Self Editing for Fiction Writers, which I bought based on a recommendation from Sarah Hoyt at Mad Genius. Most of what's in there you could learn on this site, but they have high standards. Amy, you won't like this: they say ixnay on 'answered', 'asked', 'replied', etc. Their advice is to treat 'said' as punctuation. They also say about what I say on participles and 'as' representing true simultaneity ((grin)).
Hoyt's recommendation is to put the MS down for a couple of weeks, then pick it up along with the book. Those of us who are swimming upstream on one MS probably won't want to do that.