Thanks, everyone, for your responses. I'm definitely obviously not interesting in getting him tested or put in special classes or anything at all yet. I'm just with him practically 24/7 and was starting to lose sleep over his oddities recently. Any one thing would not bother me: walking early or knowing colors or long attention span or excellent recall, but putting them together and mentally listing them yesterday I was starting to get a creepy crawly feeling up my spine.

He's an absolute joy. And gifted or not, I love seeing the world through his eyes. We'll see what the next few years bring.