I have had interstitial cystitis for 20 years, IBS for about the last 5 or so years, and fibromyalgia for the last 2 or so years. I have read that these are all related as well as migraines, as they feel they all may possibly be autoimmune disorders. I was happy a few weeks/months ago that I had not had the migraines. Well in the last week or 2 I have now had a constant dull headache/brain fog. Does anyone have anything they can suggest for the dull headaches/brain fog that has helped them a good deal?