My DD is 13 months old and gets absolutely hysterical if she hears other babies and children cry . It doesn't matter if it's her friends crying in front of her or if we hear a baby crying when we are out and about. She gets so so upset and it's very hard to calm her down again - what can I do? And why has this started all of a sudden? She is normally very happy and confident - though she is going through a very clingy stage at the moment also. Any advice is greatly accepted!