When we first got him, he had a respiratory infection, which is pretty common
in shelter
cats. We took him to the vet and they said it would probably come back, so when he started having sneezing fits for 5 or 10 minutes, I figured it was probably just to do with that. However, I've started to notice that his urine smells very strong lately. He is very good at using the litter box and his urine has never smelled before.