From the beginning, our baby girl has slept through the night. However for the past week, she wakes up (eyes shut) and starts moaning and crying, it happens like 4 to 5 times - although to me it seems like every 30 mins! What is this? It's new and different and unusual! I thought of teething? But her first two teeth popped out of nowhere (around 6 months) and she had no symptoms.. doesn't mean she won't go through them now? Could she be sick? - although during the day she is healthy and active and doesn't cry? Or could she be too cold or too hot? But why only now? Please help?