I have an under active thyroid - hypothyroid & have been so for about 22 years now. I was started on 25mcg then moved up yo 50mcg then 75mcg & 100mcg & now I am on 100mcg &125 mcg on alternate days. 100mcg I am told is too low &125mcg is too high & I have been on these for roughly 4 years to date. My GP does to monitor me as a matter of course. I have to ask for tests when my symptoms start playing up but I am always told my readings are fine even though the symptoms are visible. When I query the symptoms I am told they must be due to other reasons but with no further explanations. I do my best to keep to healthy eating with lots of Seaweed, Iodine rich foods, exercise, lots of volunteering to keep active & putting smiles on other people's faces thereby getting lots of smiles too. I have bad days when I just don't want to get out of bed, feel tired, hair all over my pillow, etc but GP says all is fine. I do listen to him as what is the alternative? I am almost 70 years old so feel I have coped Okeyish under the circumstances!!!