For the past three nights my daughter does not want to sleep for very long at night. Tonight, for example, she went down at 8:15 but was up at 9:45, 10:15, 10:45 and 11:15. Each time she nursed for a few minutes and went back to sleep. She's been like this for three days. She slept for a two hour stretch last night, and that's the longest in three days. She has been sleeping well for months, waking 2-3 times per night. During the day she is pretty much herself, maybe a little clingier than usually and just a tad fussy. Anyone have a clue what might be going on? I need sleep!