my daughter just completed 4.months . she is making fuss when iam trying to breast feed her. she is taking breast milk without any issues in night times and in some parts of the day when she is thumb sucking. other than this she is not at all taking milk even though she is crying out of hunger. she is keeping all her fingers and sucking them but not accepting breast. at that time I am expressing milk and giving it with spoon. please tell me what is my kid problem and what I can do. thanks