Ha! I had one yesterday, but it happened right after I ate a Dunkin Donut. Who knew donuts could be a trigger? What a cruel, cruel thing.
Originally Posted by LoloDSM
Malted Barley Flour is most likely the culprit. See if the donut you ate has this ingredient. It's a known trigger.

Nutrition Catalog | Dunkin' Donuts
Originally Posted by medussa
You were right! The maple frosted donut contains malted barley flour.
Originally Posted by LoloDSM
I only found out this summer that it was a trigger. Who knew?