I have never had a flu shot and never get sick. When I feel anything at all I do extra nasal rinse, add extra vitamin C, daily Get Switched On smoothie and make sure I am exercising hard to get a great sweat.
You can do your own research in a few minutes and you need to. New research out again last week suggests getting the shot is no better than taking a placebo and the flu shot may harm you. If you are a 3%'er I would doubt you rarely if ever get sick too. Your immune system can easily fight it off. Take the time to do the research BEFORE you blindly go get the shot.