I've... done something to my toe. Or my foot. The left one.
I think it came from napping on the couch back on Friday; I had my toes tucked into the cushions, and I think I just slept on them wrong. Whatever caused it, the base of my left big toe -- right where the toe meets the foot -- is swollen and extremely painful. Like, I-am-seriously-limping-here painful. Considering-a-walking-stick painful.
Back on Sunday, I was able to rest for about two hours with the foot elevated and some ibuprofen in my system, and that was a huge help; but apparently I kept tangling the toe in my blanket while I was sleeping Sunday night, because it was just as painful as ever when I woke up Monday morning.
It's not crippling, but I'd have to take a break from running, fencing, or martial arts if I were doing any of those things. And it's distracting and, well, painful, which is kind of wearing me out. I think if I can just get it to settle down it'll be fine, but until then... Ouch.