Nine Month Check-up

Cohen had his 9 month check-up today.  He has grown from 66 cm to 72 cm, and he's back to the 50th percentile for height (up from 25th at 6 months).  He currently weighs 18 lbs exactly, only a half pound increase since his 6 month check-up and he's down from the 50th percentile to the 15th.  I was expecting the decrease in weight percentile because he's such an active kid, but still doesn't eat a lot of solids compared with his peers.