I have had a dry cough for about 10 months. I have been to my primary care, who sent me to gastrointorologist, ENT, Pulmunary and now an interest. They have put me on numerouse antihistimines, inhalers, anitbiotics, and still cant find the cause. I am also for the first time ever, an anemic. My Vitamin D was 19 but now is back to 30 without medication. Everything seems to be a mystery. Also I have severe itching in my arms and have been given multiple things for this without results. Have been checked for Lupus, hepatitis, had a cat scan of my sinuses and an exray of my lungs. Still coughing and itching.