I don’t think the signs are as visible until you start integrating your little one into society. As their senses and feelings adapt to the real world it becomes more visible than at home because you can so adapt to your child’s need in the comfort of your own home but when exposed to everyday outdoor environments the struggles and difficulties soon emerge and become more apparent.I noticed my child did few things at home wheb he was a baby but I always put it down to curiosity, but they became more intense as he grew up. As a baby he was so placid, and easy. No problems sleeping, ate well, pretty much had a perfect routine abd you may think it hard to believe but he was. I was lucky and I think at times sobe people didn’t believe me. He didn’t fuss, barely cried much just seemed to get on with things.