My baby is 8 months old and has never been one for sleeping. Even now she barely naps and at night sleeps for like 3 hours wakes and it takes a bit of time to put her back down. I have taken her to the doctors 2 times and he tells me she is completely healthy. What are some things I can do to help her sleep? Would constipation cause this? Or what else could this be? I try not to nurse her back to sleep but sometimes she is just very uncomfortable and won’t stop crying till I do.