migraines "just happen" so you may be blaming the flu shot for an event that may have happened anyway. the flu vaccine does not typically trigger migraines or at least i have not seen this reaction in my long years of practice. should you get the flu shot next year? that is really up to you but i am a big fan of the protective benefits of vaccines including this one.
why did i get a migraine after getting the flu shot? and should i take it again next year? . migraine lasted 3 days and i'm still experiencing lightheadiness and nausea.