Even water? That's unusual!! Is she active physically and passing urine normally? If not,consult your paediatrician for physical examination and treatment. If yes,just regulate meal timings. Give just 2 milk feeds including one top milk feed using a glass or spoon and katori and 4 solid meals a day including curd and Banana in the diet in addition to whatever you prepare at home. Remember,STICK to fixed meal timings.