my child keeps on crying and dislikes others ; what kind of sickness is this?

A. hi there are three main factors affecting child's behaviour 1. the bond between you and your child , your behaviour towards others , the enviornment around your child . 2.his or her diet. 3 .his or her sleep pattern. so , please check the environment around your child should be happy and positive . Get your child checked from pediatrician , if he/she has nutritional deficiencies. and ensure your child takes enough sleep .