He has been complaining the past few days about a sore belly on thursday he dident go to school as he was complaining about a sore head and its not like him as he loves school. Well he as just had a bath and said his tummy hurts and he needs a poo when he had finished I wiped his bum and noticed some blood. His poo had blood in you could see it in the toilet. His poo was (tmi sorry)like hard grapes. What should I do ?