Interesting article. I actually did learn something from it. Most of my migraines will start out as if they were sinus headaches, but I know better because of my experiences with myself. I cannot wait and see which it is before I take some medication, because if I do that it will be too late and I will end up all screwed up & puking my guts out for days. However, I couldn't imagine anybody who suffers from a full-blown migraine could ever even think it is just a puny little sinus headache. I canít speak for anybody else, but it's a BIG difference for myself!