CAUSE: excess, and having a rubbish time

SYMPTOMS: depression, pessimism, nihilism, taking a long, hard look at yourself

With most hangovers — however severe — you endure what they throw at you, knowing deep down you don't really regret anything. Why else would you already be planning the next weekend? The existential crisis is different. On top of spending too much money and ruining the following day, you also failed to have any fun — making you question not just drinking itself but the shape and course of your entire existence. This is the hangover where you wonder if you have your priorities straight, if you're somehow managing to f**k up (again) and whether actually, deep down, you're just not a very good person — which, let's face it — is probably why all your friends secretly dislike you. Enjoy.