I guess that I do, after all, get migraines sometimes, as my mother did and at least one sister does.
I always thought they were just plain ol' headaches because I have never been as debilitated as my mother was by them. Certainly hasn't been what I picture as "one of the world's most debilitating conditions". Also my headaches have historically been easily treated with aspirin (or aspirin + caffeine), and rest and/or yoga. Or massage.
As long as I manage my stress, then I just don't get them. However, sometimes I still will get a headache with nausea if I'm stressed, and also if I have been carrying something (or someone) in a way that tenses my shoulder/ neck muscles too long.
But the real clincher was this. I have always wondered what the heck those were. Sometimes I have gotten them with no headache, especially with lack of sleep. Huh.
But don't forget: as they say, all headaches are at some level stress headaches. I'm guessing that wouldn't include, like, brain tumors. (Or would it?...)