Hi, I have posted on here before about allergy problems causing me to not be able to tolerate levothyroxine, so have never been on any in the 7 years since I was diagnosed with hypothyroidism. But this time I would like to ask a question about my recent blood levels. My TSH had gone up to 40.32 in the blood test I had in January 2015, Free T4 is low 10.3 and T3 is normal. I had an MRI of my brain/pituitary gland last June 2014 and they said they had found either a microadenoma or a Rathke's Cleft Cyst and a mild indentation into my optic nerve, but because at that time the only thyroid hormone that was slightly abnormal was TSH at 9.34 they said it couldn't be a microadenoma. I am getting rather confused and would appreciate your help please. Have I just got hypothyroidism or is there something else going on here? I know you guys on here are very knowledgeable, so thanks in advance for you help. Happy Easter to you all!