I have had the absolute worst "health year" of my life. Got my first ever flu shot last September and in November got a bad sinus infection. Another sinus infection in January and yet another in March. Had several head colds later in the spring and summer. And right now......I have another sinus infection. I've never had a year like this with so many colds and sinus infections. The only common denominator I can think of is the darn flu shot. Just a fluke? Either way, not getting another one.