Hamster Health: Hamster Cold Symptoms

Runny nose (and whiskers): Hamsters, being hamsters, often have runny noses. But when it's bad, it's really bad.
Coughing up a storm: Hamsters can cough up quite a bit when they're sick.
Lethargic behavior: Hamsters just want to sleep, sleep, sleep.
Lack of appetite: Hamsters, even the picky eaters, just aren't interested in food.
Labored breathing: Hamsters are breathing like they're in a hamster-sized gym.