I am having a 2.8 year baby boy. He is a normal child by birth. He is showing some arrogant nature now by throwing things, hitting his head, and screaming .We parents cannot calm him during these actions. I tried to join him in a toddler class(on-line)for improving his concentration. But during the half hour class, he is making such a mess. He is not interested in eating food, hence I give him food by showing cartoon videos in mobile. I didn't entertain mobile phone during other time, I am little bit concerned about his angry behaviour