To call in sick to work

[Smarshian]

I’ve been awake since 2.30 as had a pounding headache. Have taken some pills and it’s now a dull ache. Still there but could probably deal with it, but I’m also exhausted from lack of sleep.
YABU - just suck it up and top up the painkillers.
YANBU - go back to bed

PS: Ok, a third question that needs an answer for "no" for you to go in: Is going to work likely to worsen your illness?

Only you can tell. I get migraines and sometimes the migraine hangover the following day can wipe me out just as much as the migraine.

Depends how tired you are. I know personally if i had been up since 2.30am id struggle. If you think you can manage go..if not then stay home. Only you know your body