Baby pee smells sour

Amie

Has anybody else’s baby’s pee smelled sour? It usually smells kind of sweet, like breastmilk but the past few diapers it has smelled really strong and sour. Could it be something I ate? Or medication I am taking (I have been taking Advil for a backache)? He doesn’t have a fever and seems fine otherwise so I am thinking it is probably not an UTI.