Urine Smelly What Does It Mean If He Has Really Smelly Urine?

What does it mean if he has really smelly urine? - urine smelly

My son has been sick for a week. is 7 months. Today his urine smelled really bad, like a layer of old. In these days of a recurring fever and had vomited once. Sometimes it seems awkward and makes strident tone row, which he had never used before. Is it to do children's diseases? Constipation ... Please help me

Please do not just say whether you will like to see the doctor the doctor tomorrow. THX