Leave it alone, it will fall off by itself.

[commodorified]

My left foot hurts, in some hard-to-pin down fashion which is, nevertheless, slowly getting worse.

My experience of trying to figure out what's wrong with feet suggests that the process is invariably long and frustrating and leads to a recommendation that you tape it up and rest it.

So I think I will just go with that, for now, but argh.

No medical advice, please. The odds of you being right are, frankly, very low, and I don't need more reasons to fret.