The main article we discussed was Adults with migraines have triple the prevalence of generalized anxiety disorder from ScienceDaily.com. You can read the abstract of the actual study here: Untangling the Association Between Migraine, Pain, and Anxiety: Examining Migraine and Generalized Anxiety Disorders in a Canadian Population Based Study.
Check the Mayo Clinic for more on generalized anxiety disorder symptoms.
I didn’t mention this other article, but there’s an interesting related study, also from the University of Toronto: Research shows dramatic link between inflammatory bowel diseases and anxiety disorder
And the article I mentioned about the Migraine World Summit: The Unexpected Reason You Should Pay Attention to the Migraine World Summit