As a sufferer of Snoozle's Syndrome, you know the drill: one minute you're sleeping like a baby, the next you're mainlining coffee and wondering where it all went wrong.

But little do people know, there's a darker side to this condition. A side where the caffeine takes on a life of its own, and you're not just jacked-up and awake, but actually possessed by the very substance that's supposed to be your friend.

Here are some symptoms to look out for:

Don't worry, it's not all bad. There are treatment options available.