to the very marrow

I woke up fairly early with a more noticeably sore arm than from previous Covid vaccinations, then became quite tired, achey and sweaty around lunchtime, but sweaty in a way which suggested I'd be better off putting an extra layer on to head back outside when it was time to head out. I was also more aware of the bones of my pelvis than I usually am, presumably due to exciting immune processes involving the marrow therein. I didn't feel too bad cycling between shop and house and errand-location but once back home in front of a computer I became rapidly less effective until it was time to call it a day.