I agree that becoming to something like this is clearly due to something else (like severe boredom or depression of some sort).
I'm actually getting to a dangerous phase in both of these.
Rather than focusing all my attention on one thing and draw it out, i'm currently migrating between various kinds of electronic media (PS3, lots of movies, creating silly parodies for youtube, finding things to download). It keeps things from going stale.
I would strongly suggest this to anyone who reaches my stage in terminal boredom (although after several years, I think it's finally losing it's touch as well...)