influenza
"Live in central Texas and did get a flu shot. Flu symptoms started on Monday at 3 am. I took Tamiflu Monday at 7 pm. (Got flu 2 years ago And learned you have to take quickly after symptoms). My fever is better (hovering at 99.8) and aches are lessening, but man it makes me sick to my stomachs for about an hour after taking it. However it's worth it.   Just took my third dose. Hopefully I'll get back to normal."