My 8 month old daughter is not drinking enough milk. She is formula fed and she starts drinking and then stops after 30-40 mL. I give her 3 meals and few sips of water. She does not like water as well. In the whole day, I am able to only give her about 300-350 ml with difficulty. Sometimes I also give her milk in a nifty cup which she mostly spills but manages to have a few sips. Other times she drinks from bottle. She was 2.5kg birth weight and her last check up at 8.5 month she was 7 kg. I am very concerned as her weight gain has slowed down and I am not able to find a solution.