I have a 5 1/2 month old who is a bit behind in her milestones, mainly fine and gross motor. She can sit supported but with still a little wobble, needs to be supported rib level and prefers to be on her back, rolls tummy to back but not back to tummy. Brings hands to midline and sucks on her fingers and fists. She will grab her blanket that's on her lap and try to mouth it or her clothes. But she does not have a lot if interest in her toys or her little gym, will not reach up to try to grab toys. Loves to just lie there and look around and watch people. Hasn't belly laughed but more of a haaaahaaa but smiles a lot. She has a profound hearing loss so not sure if this would delay her milestones or not. Besides the hearing loss she appears to be happy and healthy except for my concerns! But it's hard not to worry there us underlying issue. Thoughts or experiences please!