About a week of not-quite misery, but general discomfort. The kids were hit worse than Mrs WBill and I. No fever component, either. We got hit with something similar about a month ago, as well. My bet is that one or the other (or both? maybe different variants?) was the dreaded swine flu.
I'm thinking that this swine flu is a whole lot more widespread than authorities are letting on (or know about, usually gov't is the last to know), also not nearly as life-threatening, either.
Given that “new” strains of flu are typically much nastier on the second wave (where they combine with nastier strains of flu, but ones where humans have resistance), I would think it would be a good thing to catch the swine flu on this first wave, as you’d be protected from the second.