I had my first physio appointment this evening to try and figure out what happened to my leg on Monday and what I can do to keep me walking in May.
The good news is that at this early stage it doesn't look like I've done any tendon damage. What we appear to be looking at right now is some overworked muscles and possibly a touch of bursitis (that's a swollen knee thanks to a collection of fluid to you and me).
So I've been sent away until next Monday to take it easy ('you know, don't walk 20 miles') and ice and elevate my leg where possible. Should be back up and walking in no time. Which is just as good, because there's only 24 days left to go. Oof!