Our hamster Honey doesn't look the same anymore. We don't know how old he is since we got him when he was already grown and I'm wonderin if this is just from old age. He has wrinkly skin (very wrinkly skin) all over and his stomach feels hard inside. Like when I hold him I can feel like a knot or something...I'm wonderin if it's a tumor?? On the outside he has a little brown spot on his back and I wondered if that's the tumor showing a bit from the outside?? I really don't know....I thought maybe someone could give me some answers... He still eats and drinks fine. He never plays on his wheel though (he never has)