There are some good, basic books on thyroid disease in our recommended books list, but I see those haven’t made their way to the website quite yet. One is "The Thyroid Sourcebook," written by M. Sara Rosenthal, and it gets high marks for giving you basic info to get started. You can even get it on your Kindle, if you have one.
There is also a page for Frequently Asked Questions on the main site here that may help as well.
Still, the first thing you need to know is WHY your TSH level is out of whack. Your symptoms do sound like they could come from a thyroid imbalance, so it’s possible that your T4 level, while inside the normal range, is not normal FOR YOU. If you have historical thyroid lab results, it would be very helpful for you to get copies and compare them to the most recent results. Low TSH can be from several things, not just Graves’ Disease, so the intent would be to do more testing and research and find out what’s really going on inside your body.
You need your doctor to be a team member in figuring this out, so if your doctor dismissed the low TSH in favor of the other, supposedly normal, results, then perhaps you need to do research and find a new doctor as well. Any imbalance should be researched until you know exactly what’s going on.
