Suggest Treatment For The Pain In Chest

Hi, may I answer your health queries right now ? Please type your query here...my son was at basketball practice somehow he fell on a teammate knee hit him in his chest! He had been having chest pain every since! Taking him to the doctor tomorrow! He said its on and off! He went to school today and he said his chest was hurting at school! Don't understand what could of happen inside is chest! I'm scared!