my 3 month daughter is on formula feed but from some time she refuse to have milk she only drink 60 ml every 4 to 5 hrs what should I do to increase her hunger she is 3.9 kg her birth weight is 2.6kg

A. Hello mom kindly observe the concentration of the feed , because formula milk is quite filling in nature and gives a feeling of fullness , monthly weight gain is expected in the range of 300 gm to 1 kg and by the age of 4 to 6 months they double their birth weight