Last time I got a flu shot was in the 1970's. Have refused to ever since, come what may.

However, did get the pneumonia shot in 2005 without ill effect.

Some people are just highly sensitive to meds/vaccines. Too bad there's no way to know ahead of time which ones will cause problems.

Sorry for going "off human," but thought this might be of interest for those owning dogs:

The jury is still out in terms of annual shots. Although rabies vaccination is mandatory, used to get my dogs the three-year vaccine. Don't know what the deal is for cats - never had any. For my last two dogs, had a smart vet who recommended only three out of a possible seven. My dogs were never in close quarters with other dogs, and they never got any of the diseases for which dogs are given annual shots.