My 4 year old DS started having a pain last night. It comes and goes but has happened three times now. All of a sudden he will start crying and seem to be in extreme pain somewhere 'down there', he can't show me specifically where it hurts. This lasts about two minutes and then he is back to normal again in no pain. I've tried looking on the nhs website but can't find anything like it. I don't think it's a urine infection as he isn't in pain all of the time or when he does a wee. Has anyone experienced anything like this?