I am a healthy 45 yowf. 5'9", 190 lbs. I have a very itchy, bright red rash on my chest, around to my neck, progressively worse x 4 mo. Thickened, orange-peel skin. Over past 10 days severe itchy rash over forearms and ankle/shin area. These areas result in hundreds of small mosquito bite like hives. Initial blood test for Celiac was negative.