My little girl is now 15 weeks old and from 7 weeks has slept from around 9pm to 7am then woke for a feed and went back to sleep till at least 10. For the last 5 days she's been waking at least twice for a feed between 12 and 6 and is having really fretful sleep in-between. At times it sounds like she's in pain, almost whimpering in her sleep. I don't care about her waking to feed as I'm assuming it's some kind of growth spurt and will stop soon but I'm Worried there's something more wrong with her. She's ebf btw.