My baby, who is generally a very good sleeper (630PM - 630AM, with one nursing around 3 or 4AM) has been waking up SCREAMING every 30 - 40 minutes these past couple weeks. This is generally from 7PM to about 2AM. OMG, I feel like I'm gonna lose my mind. Basically every half hour, I have to run upstairs and console her. And it's not just little fussing either... it's full-blown screaming and crying.

It's not b/c she's hungry; when I nurse her, I can tell it's just for comfort. I don't think she's teething (I don't see anything, anyways), and she's not sick. Any ideas what could be going on?? I'm so exhausted, tired, and cranky, and I don't want to CIO