Kathy

It is not ignorance. I had to drop my MO and get a young endocrinologist who went to medical school in the 21st century before I could get the TX I needed. First, radiation today is designed to minimize harm to the thryoid so that is what the doctors assume since it does not happen to everyone. Remember that I had two rounds of radiation. But the basic principle is that your TSH level should be the same after the radiation as it was before the radiation. Unfortunately some doctors believe that it doesn't matter as long as the TSH level is "within the normal range".
What is even worse is that there is controversy over what is the right TSH level with the labs having a 5.5 or a 4.5 as okay on their result sheets even though all the professional associations of endocrinologists conbsider 3.0 as the highest acceptable level. Then I found an old blood test that luckily had my pre radiation TSH level which my new doctor agreed should be my level again. (Before TX, I had a TSH of 1.6 and after TX it shot up to 4.3. )

While my CCC doctors were top notch on Cancer, for related issues like Thyroid - "not so much". I was not only extremely tired but also froze for two years, even in summer, and kept a winter coat on in air conditioned places yet I was constantly told: "Your TSH levels are normal" and I did not ask for the actual numbers or test results.

Of course there could also be nothing wrong at all with Kevin's thyroid . But it worked for me.