Two other autoimmune conditions that characteristically have mouth sores as a symptom are lupus and celiac disease. I have both. :(
If I accidentally eat something containing gluten (a protein found in wheat, barley, and rye), my mouth will break out all over the inside with canker sores. In me, this is caused by celiac disease.
It is definitely possible to have more than one autoimmune disease simultaneously!
Also, mouth ulcers or sores have been reported by people with Lyme disease. Lyme disease can give you symptoms exactly
like MS, or lupus, or any number of autoimmune diseases. I have Lyme too. :(
So I guess the bottom line is that it's a good thing your doctor is running some tests to evaluate you for other possible conditions (besides MS). Good luck at solving your medical mystery.....I really hope you find some answers soon!!
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