my 8 month old daughter has NEVER acted like this before. last night was the worst she's ever slept (even as a newborn). she'd be nursing fine and sleep looking all cozy, but wake up SCREAMING within minutes. she did it all night long until I gave up on sleep just now..... I don't think it's cause of teething, although I'm sure that doesn't help. she has 5 teeth in and they never made her do this. is she sick? should I take her to get checked out? so worried about her.