When and why did Jeff start to feel concerned about S.'s health and development?Our son (nicknamed S.) is an interesting case. If you were to ever see him, you might think he was two years old, not his actual age of three-and-a-half. Not only does he model some immature behaviors, though he's well-behaved, but he's very small for his age. He wears size-two clothes still. He is getting a little taller, and he eats like a horse. But he just stays very thin. He’s not even 30 pounds. He has a little sister who is 10 months old who is catching up to him in weight. She's close to 20 pounds. She’s right around the 50th percentile for everything. He's still around 4%. On his growth chart, he has been less than the 5th percentile his whole life. And then speech-wise, he's actually more like a nine month old (not a three-and-a-half year old). For whatever reason, again, we can't figure it out. His expressive delay is huge and he does not talk. I would say that what he understands is a lot closer to a match for his physical size (of 2 years old). If we say “Hey, slow down,” if we're outside walking around, and he gets a little too far ahead, he'll slow down. If we say, “Okay, we're about to cross the street. We’ve got to hold hands,” he puts his hands up. He knows we're going to cross. If I say, “Alright, you’ve got to sit down in your chair.” Then, instead of standing up, he sits down. But he can’t talk. He's so small physically, and that has got to be holding him back in some way. I'm probably wrong, but I feel like that in my heart. Our son was born with a couple of strikes against him. His mother had a two-vessel cord during the pregnancy . He was basically always very, very tiny, through the entire process. To the point where we even got geneticists involved. And they were telling us it could be some kind of skeletal dysplasia. It could be this. It could be that. They were telling us a number of things that it could possibly be. When S. was born, he was supposed to go naturally. We ended up trying to induce early. I think it was three-and-a-half weeks early. That didn't work, so they did a caesarean. When we went home from the hospital, he was actually below five pounds. Then, right away, he had an inguinal hernia, so he went through surgery. As well as that, he had digestive issues. He was allergic to milk. It took us a little while to figure out what was going on. As he grew, we noticed that he wasn't hitting a lot of his milestones, whether it was movement, or speech, or others. He finally started crawling around a year old but he was not very good at it. And he didn't walk independently until he was just about two. We started to notice when he wasn't developing language. He also has a little bit of a lazy eye, which I think is genetic. I had the same thing when I was a child. These were all little things that we knew were somehow contributing to what was happening. Those were our first indications when we started to put together these puzzle pieces.