According to the CDC, “fever, malaise, myalgia, and other systemic symptoms can occur after vaccination with inactivated vaccine and most often affect persons who have had no previous exposure to the influenza virus antigens in the vaccine. These reactions begin 6 - 12 hours after vaccination and can persist for 1 - 2 days. Some individuals who get the shot still get the virus, but it's usually a milder case than it would have been without the inoculation; coincidental respiratory disease unrelated to influenza vaccination can occur after vaccination.”
Did I read that right? If you get the vaccine, and you haven’t before been exposed to that strain of influenza, you will get the same symptoms (fever, fatigue, muscle aches and others) as getting the flu?