This afternoon I woke my dd from her nap (I usually have to do this or she would sleep all afternoon!) and within a couple of minutes she began screaming and crying inconsolably. She didn't want to be cuddled by me or dp and was throwing herself around in great distress. This went on for 10-15 minutes and was totally out of character as she is normally a sunny little soul. Dp was so worried that he wanted to call an ambulance, but she eventually calmed down and has been fine since. Any ideas what this could be?