Simple steps for reproducing issue:
- Don’t go the gym for 7 weeks (hey, I was in Europe for 5 of those weeks, and hardly a couch potato, but still…)
- First time back, go for the toughest kickboxing class you can find with the most mean-ass instructor.
- Follow this up, back-to-back, with an intense hour of weights.
- Go swing dancing for four hours the next night.
- Note the following day that some tasks, such as moving, involve uncomfortable sensations.
I Dare to be Stupid.