Moral of story, never trust any doctor but an endocrinologist with metabolism and especially thyroid problems. After I was diagnosed I asked my regular doctor about hashitoxicosis, he said he had never heard of it. I told my fabulous endo guy what he said and he exploded, said tell him to go back to medical school, that he caused me to suffer unnecessarily for years.
That’s very true and even at that endocrinologists aren’t necessarily infallible either. The best ones go as much by how you feel as by test results, once you’ve been working well together.