Fever

My wife has been sick for a week and the doctor diagnosed it yesterday as Flu.  Cannot remember of her ever having the Flu.  I started coughing today and sneezing.  I ran 2 miles on the park roads at the park.  Now, my fever is over 100.  I have a 5K and a half marathon this weekend, so I need to find a doctor early tomorrow and get on some antibiotics. I'm not sure I caught the Flu or have my normal annual sinus infection.  I have not had the Flu in about 40 years.  I went down to the drugstore last night and got a Flu shot, my first one since about 1980.  Maybe that had something to do with it.