Urgh.

I've been feeling really off today. Like I can't put my finger on it, but I've been operating at about 60% all day. It's part fatigue, part unshiftable headache and a couple of other things that I can't quite put my finger on. Some of it is definitely related to the Covid or 'flu that I had prior to Christmas, but a lot of the other stuff is new... within the past 24 hours.