I'm assuming that Tylenol doesn't help the headache at all? (I've been known to down a couple tylenols and chug a caffeinated beverage, but a little caffeine helps me with my headaches/migraines.)
But echoing Susannah, if Tylenol doesn't help, I would call in.
Hypothyroid mom to Connor and Claire
(severe pre-e at 38 weeks & "mild" pre-e at 37 weeks)
& baby Annabelle
(chronic HTN & GD, superimposed pre-e @34 weeks, induction @37 weeks)