RE: Do men change when they can't hunt?
Well I agree with Atlas that you should get some "real" help I will offer an opinion.
It may be more of a seasonal depressional. When the daylight time gets less it has been proven to be pyschologically depressing to some folks. Now, the fact that he hunts or is active during the first phase of this seasonal depression keeps his mind occupied. Once he becomes inactive the depression sets in. Depression takes many forms, I'm not saying he sits around crying butdepression manifests itself in different ways, drinking, moody etc.
I wish you luck and I would be encouraged by your efforts and desire to reach-out and look for help.