When it comes to TSH levels I believe all our bodies are different. I have or had Graves Disease. (I don’t know if after the thyroid is destroyed you still are considered to have the disease.) I had RAI ablation in 1997. Since then my levothyroxin doses have varied. My endo said that my body was hyper for long it cannot function with the TSH in “normal” range. My TSH is kept on the low side and when it starts to go up I begin to develop hypo symptoms. I tell him that my body knows better then the blood tests. I’m not a lab value.
I do have one question for y’all that someone might could answer. As I said I had RAI. I was under the impression that this would cause the thyroid to shrink. Recently I had a CAT scan done of my upper chest and in the results it said that the thyroid gland was normal sized. Is this possible? Thanks for any input.