Yesterday, in anger, I kicked an empty cardboard box. It's a large and fairly think/heavy box. I felt nothing wrong afterwards. A few hours later though my foot felt sore, and eventually I was walking with a limp. I went to bed, and now this morning it's still in pain when I put pressure on it. It's not extreme pain, but enough to make me walk slowly and with a limp from the pain.

I looked up info on a foot sprain, but it seems that I should have felt it immediately if that is what is wrong. For now i'm going to rice.

Does anyone have any insight on what might be wrong?