I have changed my eating habits, but the only thing I've quit is candy and cake type stuff. I still have some now and then, but not like before. But these headaches I've been getting for years. On time in July a few years back, we had like 4 days of on/off rain. My head was killing me every day from afternoon until I went to bed. But I just remembered I have to take my allergy stuff.
Maybe that will help. Why couldn't I be allergic to something like...horses? Why'd it have to be dust? Heh.