Does anyone find that low pressure systems bring on migraines? After years of trying to figure out what triggered my migraines (menstrual cycle, certain foods, red wine, etc.) the only constant each time I got a migraine was an approaching low pressure system. My migraines are most frequent in the winter and spring when storms are moving in...once the snow/rain starts, my symptoms begin to dissipate. My migraines can last up to five days. Am I the only one??