3 year old to skinny?

ToManyidiots

My son will be 3 on the 20th of this month; does he look to "skinny" for his age. He eats and I mean he eats like alot but for some reason he's not gaining anything. He is 30 pnds and super tall; the doc said that's right on target for his age. There are days where he barely eats and it worries me because I fear people think we don't feed him.

Any of your kids like this?