What is this horribly virus going around?

I've been sick for over a week. Coughing fits, gunk on the lungs, completely debilitating. And it still isn't going anywhere after ten days.

All swab tests came back negative for everything. It's gone through both of my parents, and it messed them up for about two weeks each. All their testing was inconclusive as well.

Has anyone else had it? Did you find out what it was? I'm so over it.