I believe that many doctors and specialists as well do not understand all that goes on regarding thyroid issues. All the info regarding hypo and hyper can make your head spin. Do not get all hung up in the numbers from test results. It was discovered I had a goiter in my mid-30s with nodules when a doctor was pressing on my neck. She asked me "How long have you had that?", I had no idea what she was talking about. Blood work was done, no mention of anything regarding my thyroid on any of the several visits after that incident. She eventually then decided she wanted to order an ultrasound of my thyroid and do a biopsy so both were done. When I went back no mention of my ultrasound results or biopsy so I guess they were good, and, no treatment for thyroid but I have always been very overweight for many years 250 pounds. Now going forward 30 years I am 67 and was just told I have hyperthyroidism yet I am 338 pounds and have no symptoms of hyperthyroidism and they do not know the cause. The bottom line is that trying to find the cause takes so much time and tests. My TSH is very low but the other readings are normal. I am just living with it but I do have mild hand tremors. Just the stress of thyroid 'this and that' is not worth it to me. It is best to go by how you feel. Good health to everyone! Keep a positive mindset!