I have white blotches on my arms and legs, they came from nowhere last summer. My Dr. said it is a fungus under the skin, not requiring antibiotics. the internet says it is Vitilogo, which is not curable. I also have the other celiac issues, blotting, gas, diarrhea, ect. I feel better if i don't eat gluten, but the blotches never get better. Are they autoimmune...