I have three cats and two of them suddenly seem to have become ill in the last few hours. Nothing spectacular but both are unusually sleepy and very difficult to rouse, and they've both gone off their food and lost interest in going outside. Symptoms started in both at the same time and they have that kind of "big eyes" look like they're frightened of something when I manage to wake them up. The slightly less sleepy one has just got up and had a tiny drink but looks a bit wobbly on his legs.
Am very worried! Will call the vet tomorrow morning - just wondering if anyone knows what it could be? They're both fully vaccinated.