Telling myself it will pass quickly...

Bleah -- I knew intellectually that a flu shot could sometimes cause flu-like symptoms, but this is the first time I've been hit by that. Still a good idea to have gotten it, but...

(ETA: just to head off anyone panicking -- flu and covid have very different symptoms. Body aches, exhaustion, sniffliness; no fever, cough, problems smelling or anything like that -- it's much more flu-y, and is totally plausible nine hours after the shot. It will hopefully be gone in the morning.)