Hi, Lloyd. That's a tough situation to be in, and you're definitely not alone. Some people have defined triggers, but a lot of people don't, and sometimes it can seem like anything sets you off.
I do want to pass along this one article and stress and emotions, since you pointed them out specifically. Maybe something in Holly's video or the discussion in the comments there will be useful to you, or at least a little comforting knowing others have been through similar.
https://migraine.com/video/attack-triggered-by-big-emotions
Take good care of yourself, and know that we're always here if you want to vent. -Melissa, team member