Maybe it's a pinched nerve? I owned something in my back running once. Could barely get off the couch for a couple of days (no an actual couch, not Couch!)

In any case, I can sympathize. My toe "knuckle" is still painful days after I crashed my bike, my work shoes cause me to limp and pushing off on my bike is painful. Fffffffffffffuuuuuuuuuuuuuu