We had the 6 month check up today. LO has always been tall, in the 95th% and her weight has been 60-65%. Today she was in the 90th for height and 47th for weight. It seems like quite a drop to me. The NP wasn't concerned, so I know I shouldn't be. Also, she only gained a pound between her 4 and 6 month check ups. Is this normal?