I'd suspect an ear infection. My two are awful at night if they have earaches (the pressure is worse laying down.) this last go around I was up all night with the baby- and my 3 ye old never even got a fever but had a double ear infection!
She could be teething too- but I'd probably get hr checked out today- and of its the same tonight is give her a little Tylenol.
mama to three sweet, rough & tumble boys who always keep me on my feet: