Kylo was diagnosed at 15 months old, which is actually really rare. Most kids are diagnosed between about 4 and 7, or again in their early teens, and only a small number ever get diagnosed before they turn two. Being that young brought its own problems. A 15 month old can't tell you they're thirsty, or tired, or that something feels off, so all the warning signs an older kid could put into words just weren't there for us. That's a big part of why it gets missed so often at this age, until things get serious.