I think it depends on what you call work. If you are not enjoying what you are "working on" during the day then maybe some adjustment should be made. If you go and read books and truly enjoy thinking about your next move and that gives you that "butterfly" feeling then you know you are on to something. This could be what you are on this earth for. Be happy for that. Be excited that you are identifying a trend in your life. That being said, I think you should still allocate a night a week minimum to grab your girl or your friends and go let loose, have some drinks hit some clubs or whatever you like to do, that's important. Its good to take a well rounded approach in anything you do.

I always noticed that after 5 or 7 drinks that little voice in my head seems to take a break and all I'm thinking about is whats directly in my line of sight and that's a refreshing feeling sometimes.

Food for thought