Waking up at night but not eating?

tlong

For the past 2 nights, DD has been waking up at 1-2am to eat which is normal. But then she is waking up at 4am which is also normal, but she doesn't eat. She cries, I pick her up and bring her out of the room, make a bottle, sit down to feed her and she's asleep. I have tried to change her to wake her up, but she doesn't care. As soon as I pick her up, she is asleep again. But then she is up and wanting to be held for he rest of the morning. Anyone elses LO doing this? Why would she be waking up if she's not hungry?