Self conscious about my baby's weight

Hey ! I just have to get this off my chest. My baby was 7.4 at birth. She lost 10% and was down to 6 something. Currently, she is 9 weeks at 9 pounds. She ha really long fingers and toes, and really log legs and limbs!!! My pedi is not worried although she did schedule me a weight check on a month to see if her head circumference has grown (ps she also has a small head!!) my husband is tall and thin with a peanut head also! I guess I'm just so tired of everyone telling me how tiny she is. I believe she's healthy, but I also don't know what else I can do to make her gain. She is a snacker, doesn't eat much at one time. I have plenty of milk, almost more then she can eat( so I pump). I wish she would get bigger and I would get smaller!!