Programming all day

For the last week, I I've been dreaming code.  It happens from time to time, especially when I'm programming too much.  So, I'd like to know how many of you spend the majority of your day programming, and whether this is normal.  I'm in my senior year of CS @ UCSD(one more week!), have a job programming, and am working on a videogame for the XBox Live contest.  As a result, 90% of my days are spend coding, even on the weekends.  Is this healthy?  Do you guys do something similar?

i've dreamt a lot of music.
But i don't think it's healthy to work all days on the same thing. You should try something completely different, at least 1 or 2 days per week.