Allison, I'm glad to know I'm not the only one who doesn't do the "well child" visits. We're not vaccinating, so I just never manage to get them scheduled. We've been in for lots of little emergencies, too, so I know he's been checked out thoroughly every so often, just no official visits, and no charts.
Aiden hasn't gained weight in forever... he's been 28 lbs for about a year. He just keeps getting taller and more slender. *shrug*