So just back from my second visit to my lovely GP. I had no symptoms but did have hives a few months back, GP ordered bloody tests and these came back as TP ab 392 iu/ml. Had no clue what this meant but he said I had an autoimune disorder and put me on Levo 50mg. Just retested after taking for 10 weeks. My serum TSH level is down from 5.38 to 3.05. He has kept me on the 50mg dose and will retest me in 10 weeks again. My only query is that he said my TP level will not go down, he said the damage has been done and it will not change. I had thought that this would go down because I was taking Levo, is this not the case?