Not sure if this is supposed to be funny, but so far, everyone thought it was funny when i told them i hear zombies after playing a whole sunday worth of Left 4 Dead on my computer.

I lost 6 hours of sleep so far in 2 days where i am constantly hearing zombies when I lay in my bed. Is this called addiction to a game? I think I need to go and prepare a "In case of a Zombie Attack" prep list in order to make myself feel better.