Two years ago my cat contracted influenza - It's different from human influenza in the way that it causes eye ulcers, permanently damages nose and throat lining, and stays with the cat its entire life after they get it. Some cats carry it without ever showing symptoms, for others it occasionally it flares up during periods of stress or when the immune system is weakened.

The day before yesterday my cat went missing for the entire day - Since he got old he normally comes in for feeding...