The beginning of winter and its cold temperatures always brings on the first round of colds, the flu, and sinus congestion. The last of which, I am suffering with right now.
This concerned me as I am trying to get through NaNo, relatively on schedule. Where I thought my congestion might slow me down, it turned into a bonus. I spent the day in bed - and to my disbelief, got more writing done than I normally would have otherwise.
I guess when one is stuck in bed, you cannot find other things to do such as vacuum floors, wash dishes, fold laundry and tend to other distractions. All you can do is lie in bed - and write!