Sometimes I get these really weird phases where I start acting like, for lack of a better description, a wise old man. I'm 29.

For example, I'll start telling my friends things like:

-"Those neighbors need to settle down and relax, they're too damn loud"

-"All these kids use email now we should just pick up the phone"

-"I'm just too old to do that, you go out and have fun"

-"$5 for lunch, boy oh boy that's a good value you don't see much anymore"

I can't stress enough that I'm dead serious, and that there's a similar mindset that comes with this. I'm not just making jokes. Usually the phases are very brief, and I can play it off as a joke, and everyone thinks it's funny. On longer stints, it's harder to doctor up like this though.

Is this indicative of a particular disorder? Thanks.