My son turned 8 months 2 weeks ago and he weighs 16 lbs and is 26" tall. So she's a little bigger than him! Someone will always have something to say even if it was the opposite.
People say the same about my son. But what can you do? Just let it go. You don't need to explain yourself to anyone. My son is in the 2nd percentile. What's your daughter weigh?
Your daughter doesn't look tiny. I would just smile and walk away. Or say she's healthy and the doctors are not concern. But to me your baby looks beautiful and perfect. 😊