I got a flu shot, and are current on all vaccines (have to be working in a clinical setting,) and have never been this sick. They tested for all strains of A and B. I am sure there are other strains as you say that doesn't show up. My symptoms have morphed from esophageal to pharyngeal to sinal, one completely healing before the next. Strange. Wonder if all the sick people I was taking care of and the vaccinations finally got me? In all reality, I think allergies cause swollen epithelial tissues that turned into viral/bacterial grounds. Going to drink plenty of water. I let the fever ride as long as it is not higher than a 100 help fight the crap. So far, 3.5 days of work missed. For being as sick as I have been, I am surprised it isn't two weeks. I have to be pretty knocked down to call in.
If you are feeling healthy today, be grateful!