Monday's class was going well. I felt good. I'd managed to learn and execute the petit allegro combination reasonably well. My pirouettes were working well enough that I'd attempted a double in centre. We were doing the same grand allegro combination as on Saturday, and I was really having fun with it.
Then, as I landed some simple step in the grand allegro, I felt a sudden pain in my right heel. I half-assed the rest of the combination, skipping the saut du chat at the end completely. I found I could stand with weight on my foot without significant pain, but flexing my ankle resulted in stabs of burning pain in the heel. I skipped the rest of class -- all 3 minutes of it -- and did what I could as aftercare.