inconclusive FNA But now Antithyroid globulin is high at 102

Six months ago I had an FNA that was inconclusive but did show follicular changes. They said it was inconclusive because it was very small. I just had some blood work, anti thyroidglobulin which came back at 102 HIGH. I am nervous but am seeing the endocrinologist tomorrow morning and I am sure he will do another ultrasound. The past 2-3 months I have had severe pain from under arms areas and down both arms. I have been chalking it up to either the Lupus or MS that I have. Need some advice please.