I was diagnosed with hyperthroidism and my thyroid was treated with radioactive medication. I developed extremely high (700+) levels of thyroid immunioglobulin. I was treated with iv immune boosting medication with no success. I have been taking thyroid replacement and all levels are in normal range with the exception of the immunioglobulin. No one has an idea what to do for it. Does anyone have experience with this or comments. Thanks.