I need some help! The skin at the front of my neck or in the area of my thyroid gland has been very itchy. My T4 Levels are normal over the past 10 years and I take synthroid 150mcg. It has also been 15 years since I had radioactive iodine treatment for Graves disease. I stopped wearing necklaces and cant relate it to any foods, perfume or diet changes. I just want the itching to stop!