Hi my baby has got flag head on left side as she was sleeping with head turned mostly on left.. tried to reposition her but she again turned on left. She is able to turn her head both sides comfortably when on her back awake. Also noticed a bit of flattening on the back just a small part. I have been told it resolves once they go mobile, does it really  regain original shape even if it's severe? What can be done to further avoid flattening? I try to carry her during the day, little bit if tummy time. Does cloth jhula help? Also does mustard pillow help?