What do I do if my baby just won't focus on eating, but then complains that she's hungry? She's 13 weeks old but 3 weeks from term (she was a 10 week preemie). Some feedings, she takes charge and eats vigorously for a half hour on each side. But just now, for instance, she sucked for a few minutes and then fell asleep or lost interest (after really seeming hungry), so I spent about 40 minutes trying to get her to eat, and then gave up; now she's acting hungry again. Should I have waited before? Maybe she wasn't really hungry, it was something else?