I get migraines and didn't have any problem. Bring unable to focus is more of a symptom or early warning rather than a trigger, at least for me. I'm not sure what the trigger is, maybe being dehydrated or something I ate.
I used to think heat/exercise was my only trigger. Then I got ahold of some of some HDR-enabled emojis and immediately started seeing auras everywhere haha. Didn’t take long to get rid of those. I didn’t get one from this article, but it felt like I was about to. So maybe not migraine-triggering but definitely anxiety-triggering :)