Yesterday I woke at 4 am, and was fine. Went back to sleep 6-8. When I woke then, my entire body had burning pain, stiffness and weakness. I find it strange that I was fine two hours before (except for slight burning in chest).

Did anyone else have a sudden onset like this? I had my shot on 2/1 so this was on day 10. Peak action is on average day 7 and half life is 12.8 days.

Those of you who describe burning, or pain, or stiffness a few days in, was onset sudden?