Had a black toenail in September, I kind of helped it fall in January, the baby nail was already underneath it so no problem, never felt tender not even for a minute. I had the same shoes before and after, didn't have another black toenail at other moments. I have no idea what specific configuration of events led to the initial thing.

So don't sweat it.

I just hate getting pedicures, I'm afraid of scaring the poor girl. My feet still could use a little love though.