It really is amazing how much you can get done when you have a clear mind, and, on the other hand, how little you can get done when you have a cluttered mind. I’ve been writing for over eight years now and I’ve rarely been hit by writer’s block. Not that I’m boasting, it’s just a state of mind; I almost never allow myself to say ‘Oh well, writer’s block. Nothing that can be done about it.’ Happy, sad, angry, I’ve always forced myself to get in at least a little writing.
But, sometimes when I’m least expecting it, my mind will become so completely cluttered that I can’t perform everyday activities, let alone get the creative process flowing. I don’t think it’s the same thing as writer’s block because usually that doesn’t affect your daily life. In any case it really is horrible! Luckily there’s a cure; stop, and sort out every little issue that comes to mind, even if that means telling yourself there’s not a thing you can do to fix Problem X and Y. At the end of the day, and with a good night’s sleep, you’ll be feeling better and writing better.