My baby is 7 month old and she is passing the hard stool from last 20 days . I am giving her oats cereal, makhana cereal and rice and moong dal cereal and khichdi both. I gave her 2 times a day. If she eat oats cereal at day time than I change the cereal for dinner time such as makhana cereal or khichadi or daal rice cereal. Also I gave her some warm water, grip water.I massaged her 2 times. please tell me whats the reason behind her hard stool and how to cure.