9- Mood Issues
Unexplained mood issues become more common and frequent despite any triggering incidents around you. This occurs due to depression and anxiety, which are caused by Celiac disease and gluten intolerance in general. Some mood issues are related to anxiety, others can be affiliated with depression and there are some which neither of them can explain.
This is often seen as if you go to sleep feeling normal but wake up feeling extremely anxious or depressed.