Yosemite Valley in the winter when the snow is on the ground and it's deserted. A place that makes you breath deeply and go 'Aaahhh.....'. And I'm a Brit...

If you're not 100% sure you have flu, you don't have flu. If you can even consider getting out of bed to go to work, you don't have flu. As to whether you should go to work with a bad cold, probably not - you'll only pass it on.