My baby is fussy all day. She doesnot take her feeder. Sucks for 3 4 sec and then turns her head away and cries. I know she is hungry because she sucks her hands and anything that comes near her mouth. She has no mouth sores or she is not ill. I dont understand what is wrong with her. She doesnot take my feed also. Only takes when she is asleep. Please please help me.