I have had eczema for years, which I have heard is an autoimmune disease or reaction. I also have had episcleritis of the eye off and on (more on than off) since June or July of last year, which is also an autoimmune reaction. I have not been officially diagnosed with Crohn's or IBD but my internist believes I DO have one or the other and she said the episcleritis is somehow related to IBD.
I hope you are able to find out something soon--good news! Best of luck and keep us posted!