"Fell on Black Days" was like this ongoing fear I've had for years...It's a feeling that everyone gets. You're happy with your life, everything's going well, things are exciting - when all of a sudden you realise you're unhappy in the extreme, to the point of being really, really scared. There's no particular event you can pin the feeling down to, it's just that you realise one day that everything in your life is FUCKED!