Why say “I think that cheese was off”, when you can say: “I think I have a touch of tyrotoxism.” Tyrotoxism is food poisoning caused by cheese. From the Ancient Greek: tyri (cheese) + toxikon (poison).

“The next morning the guests were in agreement – the cheeseboard was to blame, and the malodorous brie, in particular was singled out as the source of the tyrotoxism.”