Get up and go

I should be raring to go after a relaxing extended weekend. Instead I feel myself shutting down as my fingertip moves down a list of deadlines, people to call, interviews to conduct, reports to write. It's crunch time and I feel like crawling under my down comforter and sleeping for 2 weeks.

Some call it lethargy... others, laziness or procrastination.... Do I call it winter-time blues?

How do you energize when it feels below zero outside? When the assignments are due and presentations are 2 days away, how do you raise your energy level? Caffeine has not been working for me. Any ideas? Is the drop in energy and sense of dread physical? Or is it all just in my head?