My endocrinologist said something that led me to believe that I am at this point. That makes sense, as my current dosage level represents an increase that occurred during a time when my thyroid was creating extreme symptoms: strange problems in muscles and nerves, extreme fatigue, and slowed thinking. The increase in dosage helped tremendously, and my further tests have shown that I have remained stable on this dose for two years. I suppose that period of intense symptoms might have been my thyroid's last little struggle to cope.
I am so thankful that I have a team of wonderful, caring doctors who do want me to experience my best health possible. They are all very well educated on the subject of Hashimoto's, and all do listen to me and suggest things to try to improve my overall comfort and energy level. I would not trade any one of them. Yet, in asking each what happens when the thyroid dies, I've received slightly different answers. I'm a little confused as to whether the Hashimoto's goes away or whether it continues to attack other areas of the body.
So, I'm just beginning to research this question. This article doesn't exactly answer that, but it does explain why a thyroid dies. It also mentions that Hashimoto's not only affects the thyroid, but the gut, brain, and pancreas, as well. I'd need further research to decide whether to go to the bank on that supposition or not, but it does make sense.
If you know of any links to research in this area, please leave it in the comments. I'd also love to hear from long-time Hashimoto's patients about how the progression of the disease does or doesn't affect their health.
Here's to your health!