Acceptance and approval part company here. You can be entirely clear-eyed about what your body can manage this week without having signed anything agreeing that it is fine.
There is a moment people describe about a walking stick, or a lift they used to walk past on principle. One day it stops being an admission and becomes a piece of equipment, and all the energy that was going into resenting it goes back into the day.
That energy has somewhere better to be. Almost all of it does.