In terms of my book, I've not made much progress since just before Thanksgiving - too busy with holiday plans, a funeral, and illness (first my husband, now me). My cold is better, although I'm still way down in energy, and I'm finally able to function without taking a nap 1/2 way through the day. I even made it to the gym twice in a week.
Most importantly, the brain fog has lifted. For over a month, I've been unable to concentrate on anything substantial. Over the last week, I've started writing in my journal, planned the outline of a short story, and done some background thinking about my next book.
Tomorrow (Tuesday), I'm planning on getting out my notes and diving into the revision full-bore.