I'm on baby number 3 (6 months old) and I noticed that he was developing slowly compared to his older siblings, so I popped a just-to-reassure-myself call to the HV.
She ran through the Ages and Stages for his age over the phone and it came out that he is fine in all areas except gross motor, which was low enough that she's put a referral in to a paed.
Specifically, he can sit unaided and bear his weight on his feet, but when on his tummy he can't push his chest up and only rarely can roll (although he tries). When on his back, he can't lift his legs and isn't rolling, not even into his side. Plus, he couldn't reach his arms up to his baby gym toys until way past 4 months. Again he tried, just didn't have the strength.
We're already dealing with multiple allergies through my breast milk so life hasn't been easy for him. Now this. Anyone has similar?