"Preventative" hydration and Advil don't always do the trick...

Had a Plegridy injection last night and I feel like I was hit by a truck. Chills, body aches, some nausea, and a headache. I just want to sleep. Not necessarily looking for advice, just want to complain (if you have some that's still fine, though lol). If the medicine hadn't been controlling my MS for over six years I wouldn't want to put up with this. (On the plus side my liver labs are totally normal rn yay! ALT was elevated for over a year, but not by much.)