My baby girl is 16 weeks and when last weighed was 12lbs 12oz. She is drinking between 24oz-27oz a day. She is bottle fed. All the guidelines say more but I can't force her to drink more. She seems happy enough, having bowel movements and wet nappies (sometimes not soaked through) and is very active and social. Should I be worried, I'm a first time mum. Thank you in advance xxx