Hi, My daughter is 4 months old now.she was born with under weight 1.5 kg.in the first 2 months her weight gain was good by end of 2 months she was 3 kgs. but in the next 2 months she hardly gained weight of 1 kg. in the first 2 months it was formula feeding and breastfeeding both.but in 3 & 4th months self feeding is doing. She is doing fine and active but there is no weight gain like earlier.suggest me if I need to put her on Formula feeding only or weight gain is normal for low birth weight baby