Insomniac.

You know your body's pretty screwed up when you feel only the extremes of temperatures (and nothing in between). Either I'm perspiring, or I'm freezing my butt off.

You know your body's really screwed up when you get aches and pains everywhere. And can solemnly swear that you did absolutely nothing to aggravate it.

You know your body's damn screwed when you fall asleep uber early, wake up in the middle of the night wondering what the heck just happened, and then go back to sleep only to wake up in the wee hours of the morning to see the first bus pass by your window.

Unfortunately, I qualify for all three. And no, I'm not going to launch a tirade about how lousy I feel because I'm aware that there're people worse off than I am, but when you start doing brain teasers just to occupy time, only to realise that you've done the exact same one three times before, you start to wish that everything would go back to normalcy.

And if I run into someone named Tyler Durden, then I'd know I'm finally losing my head.