Tarsal Tunnel Syndrome
I think that I am particularly susceptible to carpal tunnel-style injuries (or repetitive strain injuries or whatever you want to call them).
I've forgotten about it for a long time, but a few years ago I had pain in my feet, in and near my toes. It got worse whenever I ice skated. It was pretty bad so I went to see a podiatrist.
He diagnosed with me with tarsal tunnel syndrome. I had never heard of such a thing, and until he had made the diagnosis I had never noticed the similarities between my wrist and hand pain and my foot pain.
As soon as he spoke the words, it was an "Aha!" moment for me. The pain had been almost completely explicable, because there was never any single incident of strong impact to my feet. But thinking of my foot pain as carpal tunnel in my feet solved the mystery.
The pain in my feet is practically gone, because I ended up stopping the activities that caused overuse in my toes and feet.