Weekend Blahs

As a writer, sometimes you have 'blocks' and weekend blahs. This occurs when you are too relaxed and unmotivated to do anything related to writing. So how is that my mind won't shut off, but my body does?
Can anyone relate to this?

Update

Well, Friends, seems I have lots more work to do, thought I could have a day off, but now I am finding that running my biz is not the same as doing my biz! It's an interesting multi level transition from the norm for me, and being 'tech challanged' is a journey in itself.

But, as my dreams come to pass, I am reminded of why I do this every day.
Are there other writers out there running into this issue too?