Where can I find a doctor on Long Island that tests for Hashimoto's Thyroiditis if FSH is normal?

I am SURE I have hashis, I have every symptom possible for the last 2 years. My entire body is out of whack, and both of my parents have hypothyroidism. I know for a fact that I'm next, but i want to catch it early. I've been told now by 3 endocrinologists that since my TSH is normal, there's nothing wrong with my thyroid. Any decent endocrinologist should know to test for the antibodies. Yet mine will not. Please help!