New (old) symptom -- anyone seen this?

I've taken on my TMS at a new level lately, and in the last few days in particular I've had a lot of moving symptoms. The latest symptom, however, is one I've only had once or twice before and wondered if anyone else might have seen this.

The symptom is a pain underneath my thumbnails, on both hands in a mirror fashion. It's pain under the inside upper corner in particular. Almost like I had an infection under the nail, but I don't (and I can't imagine ever getting one under the same spot on both hands).

Anyone else seen this particular one? Last time(s) it eventually went away.