I get those days sometimes, when no matter how hard you try to get something (ANYTHING) done, nothing seems to happen. I have found that those days are best for just walking away and doing something useless, because otherwise I will just be disappointed for what I didn't accomplish.
Thankfully, that doesn't happen every day so I do get some things done
Pornrex, hope you are feeling better... I suspect you will have a ton of energy once you are back to 100%, as that sort of thing can really slow you down...
Alex