O lord, creative block!!!

I have been really REALLY unwell these last couple of days, since Monday in fact and have spent most of my time in bed with a pencil and a pad, trying desperately to come up with some decent ideas for this ident yet they seem just to be slipping away from me. I always do this, I have loads of ideas at the beginning when the project is just set, but they drain away to nothing for a dry period of about a week and then I'm able to claw myself back out the creative rut to pull something out of the bag. But in this case we were only given a week to come up with ideas which has given me no time for my usual blank. I have done an infinite amount of research, and word association brainstorming around the theme, yet you can't guarantee your going to land on something effective and low and behold i haven't, or at least i think i haven't. Its so hard to know whether you idea is a good one.