Better Screening Test for Migraine

"Of nine diagnostic screening questions, a three-item subset of disability, nausea, and sensitivity to light were most effective. These questions were phrased as follows: (1) Has a headache limited your activities for a day or more in the last three months? (2) Are you nauseated or sick to your stomach when you have a headache? (3) Does light bother you when you have a headache?"

I've always wondered what questions to ask someone who I suspect to have migraine. Guess this might be the answer.