Why does the flu shot always seem to make me sick within a day or two after getting it? i don't think it is worth it.. am i wrong?

Depends: This depends on the types of symptoms/reactions you are having after the shot. You are not actually getting he flu but your body is reacting to the components of the flu vaccine in the same way it would to the flu itself - thus creating an immune response to protect you from those strains that year. However, if, severe reactions are occurring (go to the cdc website for specifics), see your doc.

Yes: Flu shots are typically given during cold season. As a result, a large proportion of people who get the shot will get a cold afterwards. It's pure coincidence; flu shots can't give you the flu. You should get the flu shot every year, because flu is no fun at all.