I get that feeling a lot, and I've got it now.
At the moment I'm puttering around the house, still doing the massive reorganization and cleaning effort. Current job is the dishes. But I'd rather be off doing something and the dishes ain't it.
On second thoughts, I think I know what it is. It's not so much that I want to do something, more that I want to do something with someone. I'm lonely, and I'm getting sick of it.
Anyone know of a single gay guy who'd be interested in me, and I'd be interested in them?