Motivation, or lack thereof

Yesterday I had a semi-productive day of getting some medical stuff out of the way, had some medication changes, and overall made it through the day pretty well.
However, today I am feeling nothing more than the will to stay in bed, sleep for hours, and maybe a snack later. I have lots of things scheduled for work, and need to get there to get it all underway, but total lack of motivation and the strongest inertia I have ever experienced means I am still in bed and not dressed.
More later - maybe I will be motivated to blog further from the office.