I don't get headaches but I do get sinus aches. New Orleans has a lush natural foliage base with every kind of wild weed you could name that likes warm, moist soil. (Are there any that DON'T?) All through summer, various species bloom and put out their pollen. Winter is actually great in our area because the pollen dies down a bunch but we rarely get freezing weather. New Orleans autumn festivals are usually great! Cool, crisp air with good food and cold beer. Cajun music either live from the stage or blaring from the loudspeakers - or both. How much more fun can you want? But that is even better because in the fall, my sinuses clear and the allergy headaches go away.