What Have You Done Lately?

"When we have nothing to worry about we are not doing much, and not doing much may supply us with plenty of future worries."

Chinese proverb

I can think of two reasons you might not being doing much.

1. You're too tired.
2. You see no reason to be doing something.

The first is ok as long as you start doing something once rested.

The second and you're on your way to plenty of future worries.