I'm surprised it took them so long to even run this test for you - I'm so sorry you've put up with this for so long. I'd consider a new primary care physician - it's crazy that you were either dismissed (psychosomatic) or scared (cancer) or put through a battery of tests, when a TSH blood test is so routine.
I've been on the same dose of thyroid replacement med for many years and it's not hard for them to find the right one/right dose. I have a friend who had Hashimoto's and had her thyroid removed. She thought the meds would make everything all right, but found that she still had a lot of side effects. Hers were worse than mine, but we both experienced weight gain, hair loss, exhaustion and depression. We found phenomenal results from proper nutritional supplementation. We had both taken lots of multi-vitamins over the years, but didn't find we had results.
In fact, she and I met at a conference on supplementation, and we both now have great success stories to tell. At a recent conference, I met a woman who is no longer on her synthroid so I am going to do what she did. Please understand that no one just went off their medication - she did it in cooperation with her physician. I've gotten off many other medications (anti-depressants, allergy medication, and so on) and so I think the thyroid may just take a little longer, but that's my goal. Even if I don't get off the medication, just getting rid of the side effects (of the meds or the disease, either one), is awesome!!
I've never felt better, and my physician is absolutely thrilled with what I'm doing, and said to keep it up. My husband's physician (very well regarded in our area) is equally thrilled with his results in other health areas.
Also, with more energy, we are able to exercise more, which not only helps with our moods/depression, it helps with the weight! My husband's weight is completely stable, and both of us have seen our cholesterol go down. Also my blood sugar is now stable so that helps.
What I like is that the science is complicated, but taking the supplement is really easy. It's not in pill form so there's no problem with absorption - science has shown that pills are not absorbed completely and often not at all, so people who are choking down handfuls of different nutrients are wasting their money and often are in worse physical shape. Don't take individual nutrients - it's better to take something comprehensive. I make sure it's patented (so it's safe, effective and unique), made in the US (not just distributed here), and also allowed in certain other countries (e.g. Australian, NZ, Germany) that have much more strict regulations than even the US.
If you want more help, message me.