I don't know if it's also useful- I'm 30 now, 5'2, about 140 lbs, and I live in Montana. I'm of German/Welsh/Italian descent mostly. My Grandfather may have had an autoimmune disease and my mother was diagnosed with sero-negative RA. I didn't start having all these symptoms until I was 22 and since have had eye and mouth dryness also, which I forgot to mention.