Yes - I think that's the problem!

Cabin fever is an idiomatic term for a claustrophobic reaction that takes place when a person is isolated and/or shut in, in a small space, with nothing to do, for an extended period (as in a simple country vacation cottage during a long rain or snow). Symptoms include restlessness, irritability, forgetfulness, laughter, and excessive sleeping, and an urge to go outside even in the (less miserable) rain, snow or dark.