Yeah, yeah, blah, blah, been there, done that, many times, usually falling over, or falling off my bike.
Apparently I have floppy joints. Not only does this delight mean that I AM technically limp wristed, it also means I'm quite flexible - just not in ways I should be. Most of the time it's no biggie. I can do some tricks with my thumbs, although the one that had a serious scaphoid break is no longer as flexible as the one with a minor scaphoid break. I can easily bend my toes to vertical. Paradoxically, my shoulders don't have a full range of movement.
But back to my ankle. like I said, normally I'll fall over, rolling or twisting my ankle on an uneven surface (because my joints allow excess movement). On Sunday, I was walking. OK, it was an uneven surface, but I didn't twist or roll my ankle at all. It felt wrong as soon as I put my foot down - it seemed like I was compressing my foot more than normal - no twisting - but it all worked. Until I put it down for the next step. WTF? Where did that pain come from?
Somehow, using my bike as a crutch, I managed to hobble up the rest of the hill and ride home. Riding hurt, but it wasn't as bad as walking.
Ice, rest, a tight ankle guard, and a day off, and it seems to be sort of OK. It still hurts, but I can walk, gingerly. There's no bruising or swelling, as I'd expect for a sprain. Just hurt.
I think this must be another of those cons of getting older.