A.C.
I would also guess teething. There are these wonderful teethign tablets. They are all natural/homeopathic so they don't effect her negativley. However, they work on teething like a friggin' champ! They're only a couple bucks and you can find them in any pharmacy. For my DD, when even orajel & tylenol didn't work the teething tablets were like an on/off switch for crying. See if that helps. Good luck!