My hamster lives in an 80cm by 50cm by 50cm cage and is located by the side of my bed. He has a coconut chew that hangs on the side of his cage. I heard this banging against the bars so I knew he was playing with it, I looked over to watch him play and he noticed me. He then tried to get a closer look and started climbing the bars towards me. Im wondering if he's stressed, because I know bar climbing is a sign of distress, or whether he was just curious and trying to get to me. Any opinions?