Because I think I am. My boyfriend (henceforth referred to as N) and I recently set up 10-day free trials for World of Warcraft. Last weekend found us in the shops buying a copy each of the game, because our 10-day trials had expired and we missed playing it. After a moderate amount of playing during the week, we've nearly perfected questing as a team, although voice chat is the next hurdle. However, this weekend we've found ourselves on a slope more slippery than a well-greased jelly...
The last two nights have seen us up until 3am and 1am respectively, with sleep-hangovers a prominent part of the following days. We're unable to quit without completing all quick or easy quests, selling all unusable/useless loot, training up all skills as far as possible, and stopping at a 'resting place' before logging out. I'm not worried (yet) but I do wonder if it's healthy, or if this is a normal phase for people new to the game.