It can be frustrating to develop a significant respiratory illness the same year you were proactive and got the flu shot. Remember, however, that getting sick does not necessarily mean the vaccine didn't do its job. And even if you actually do get the flu, that doesn't mean the shot won't work for you in the future. Regardless of your past experiences, it is always a good idea to get vaccinated to decrease your chances of getting the flu or giving it to someone who is at high risk, unless your health care provider has told you that you should not.
I got my first and only flu shot in 1999 and 3 days later had a shingles outbreak. I have been dealing with chronic shingles since, by chronic every 6 to 8 weeks. I asked Dr if flu shot could be cause and his response was "no." I also ended up very sick just hours after the flu shot. I had no symptoms of an oncoming cold/flu as I usually do, it was like all symptoms hit me at once. I searched for a correlation for years. Now it seems this has been a problem for many years. I currently take 400 mg acyclovir daily to keep them at bay. My vaccine was administered by VA hospital.