So I did not ride on Monday. I did not move from the couch until late Monday night. I woke up Tuesday morning feeling waaaaay better, though I slowed down through the day, and planned on a road hack. I got to the barn to find out Tristan had attempted vivisection of his left hind hoof, as seen below.
Luckily the farrier was there and finishing up with another horse and said he'd look at Tris next. Score. While waiting, I watched a lesson and seeing another rider sit the trot made me queasy - no riding for me after all. Farrier cleaned up the foot and declared it ugly but not worrisome. He's mixing up gunk for me to apply until it grows out just to be careful but it already looks way better.
Today I am feeling well enough to for sure go for a hack...and it is pouring. We'll see if it keeps up until I get off from work, but seriously, universe, I would like to ride my horse.