Yes I have my heating lap on one side and when I turn it off I put a heating mat under the opposite side at night because my room is freezing. I did all that, pets Mart had him on a schedule where I feed him every Friday. They were feeding him eight Fuzzy's for him to be so young. He is quite big for his age, when I got him the first week I fed him 2 small mice because that's what they told me to do and then the next Friday I fed him once mice because that's all he'll eat. and then this Friday he gets in attack mode like he's ready but seems to be a little bit squeamish he's striked a few times but missed, yhe was breathing pretty hard so I got nervous I don't want to stress him out or anything and he was shaking. Also not forgetting I changed his bedding earlier this day so I have a feeling that might have be the problem but I'm not sure.So I left the mice in there for a little bit. Saturday I try to do it again he wanted to eat but this time he seemed scared still he just kind of sat in the Striking mode looking at it. And then when I went to get it out of the cage he was frightened of my hand. So I don't know what's exactly wrong. I looked up and some people say he might be constipated or just doesn't want to use the energy.