DS4 had an MRI at birth that showed his brain was immature for his gestation (he was born at 35 weeks and his brain looked more like a 33 week olds brain). Repeat MRI is this Thursday and I'm panicking. DS4 is now 5 months and seems quite behind in his development. He hardly ever smiles, doesn't look at you when you talk to him, no head control. He likes lights and sleeps a lot. He can roll over from his back to his tummy but not the other way round. DS2 (aged 5) had physical development delay but his MRI was normal and DS4 seems different to DS2 at the same age.