My dd is 3 1/2 months old and her neck muscles are getting quite strong, she holds her head upright very well now and can lift it up and keep it at almost a 45 degree angle when on her padded changing table matt or in her cot. However, she hates to be on her tummy on the floor and she grunts and moans and doesn't seem to be able to keep her head up as far or for very long there. She gets very frustrated and ends up laying face down on the floor grunting. Did any of your dc's have this trouble? What can I do to help her through this? I'm concerned because she's getting to the age where she should be learning to roll over from her tummy to her back but I fear she never will if she doesn't spend more time on the floor on her tummy. Help! TIA!