Or psychosomatic. It's possible she believes that those items all trigger her migraines therefore her body gives her a migraine when she believes she's had one

Or psychosomatic. It's possible she believes that those items all trigger her migraines therefore her body gives her a migraine when she believes she's had one of her triggers. A big tell would be her getting a migraine and blaming it on "hidden MSG" in a food item that doesn't have it. Or her not getting migraine from foods that have MSG naturally but is never pointed out. Like tomatoes.