I had a flu shot for the first time last year (Sept 2010). Within 3 hours I began experiencing flu symptoms including chills, headache and a 102 temp. I felt very flu like the entire following day but within 24 hours the symptoms had disappeared. I asked my neighbor who is a nurse what could have caused this and she said the preservative that is in the injection. I am not sure why I had this reaction but now I am worried about having the shot again this year. I never catch anything (sore throats, colds, flu etc...) so I am thinking not to bother with it this year. Anyone else had this reaction before and if so do you think it was caused by the preservative? Thanks.