I didn't take the time to read the article where I found this at but it looked good. The article is called
Terrible, Horrible, No Good, Very Bad Days at Work and What to Do About Them. I just wrote an article over on
ArtfulAbilities.blogspot.com on how to take a break from a chronic illness (in particular Mixed Connective Tissue Disease and Migraine) but it pertains to any illness; it really wasn't specific to just those disease. You might want to check out one or both blog posts.