I have just discovered that following my routine test a year ago, my thyroid was still underactive despite being on levo for a year prior to the test. Now, a further year on (having just requested those results) my Serum TSH was 7.30 (0.40-5.50) and I was NEVER told and nobody increased my medication. Now I have recently been diagnosed with Hashimoto's!! I am furious and have made a complaint with the GP surgery. Any advice much appreciated.