#6 Migraine headaches
Image Source: Quinn Dombrowski
This may be a symptom that is not as talked about as often as some of the others, especially when people are suffering with celiac disease, but migraines are an extremely reliable indicator of problems with sensitivity to gluten. The severity of the migraines will differ from person to person, with some just experiencing annoying headaches on a regular basis, while others suffer from full-blown migraine headaches that can be quite debilitating.
