Does my little girl have to grow up so fast?

We went to the Dr today for Casayas four month check up and for Ashleys 3 year check up. Ashley now weighs 35 pounds which puts her into the 77th percentile for weight. She is also 38 inches high which puts her into the 57th percentile for height.

Casaya now weighs 11 pounds 4 oz which puts her in the 1st percentile for weight. She is 24 inches long which puts her at the 4th percentile for height. Then I dont know how many inches her head is but her head size is in the 44th percentile. So the dr said she is very little with a big head! He also said we needed to "fatten her up" So he told us to put her on rice cereal. Normally babes are not supposed to have it until they are at least six months old. But she is now five months old, but if we go by her adjusted age she is only 3 1/2 months old. Which is to young for cereal but he wants her to get big and chubby. So we gave her some rice cereal today when we got home. She did a lot better with it then her sister did. When we first introduced cereal to Ashley she screamed her head off. But Casaya just kind of sat there and could not figure out what in the world she was supposed to do with the stuff. She did pretty good at eating it, granted most of it still came out all over her, but at least she did not scream!