Help, I don't know what's happening. My daughter ate at 10 PM and went…

Help, I don't know what's happening. My daughter ate at 10 PM and went to sleep at 22:00, she slept right through. She woke up at 23:30 hungry, finished 50, fell asleep, woke up at 00:00 again demanding food, ate 45, fell asleep. She woke up at 3:10 from that moment I haven't been able to sleep, ate 60, ate, put her in bed, she woke up at 4:45, finished 30, fell asleep and woke up at 5:40 again hungry and ate 15. What