I think I can confirm after several days of throbbing and inflammation: I've cracked a bone in my toe or foot. I did it when I went to check on our daughter late at night. My toe clipped her bed and holy hannah did that hurt. I wasn't much use to her because I was mostly staring around blinking in disbelief at the eye-opening pain. But it soon passed, and now I just have a funny feeling of soreness and something not being right.