Help! Baby had 4 month vaccines Monday and slept most of the day after, getting up to eat. Then all day Tuesday wouldn't nap, fussed or cried all day and had been kind of grunting. She has had more than the usual amount of dirty diapers, which I've read can happen after vaccines, but it's not like her to stay up after a night feeding or do this grunting thing. Any advice, or is this just the typical fuss after shots? I need her to sleep!