ouch

i'm sorry you're going through this
ask your doctor to run Free T3 and Free T4 tests, plus antibodies. If you're feeling hypo and one of your tests indicates that you are hypo then hopefully your doctor will pursue it... if you have nodules doesn't that imply hashimoto's?
I don't know much about it I'm afraid, I'm a standard hypo type and other people will know a lot more - just wanted to give some input and let you know that someone cares!