Excellent post, very well written and informative :-)
I also have autoimmune issues myself which no doctor can work out at all and has made me very ill, none of them seem to be able to get the bottom of it, what has helped so far for me has been removing gluten and diary and nightshades and I am now trying the low FODMAP diet too, I also take a powdered supplement called Ultrainflamx which is meant to reduce inflammation but I am still unsure of its overall effectiveness, what specific allergies have helped you when removed? Organic food is massively important too, the toxic poison they put into many of our foods is for certain a cause factor of all of this.