You are entitled to a second opinion. I suggest emailing info@thyroiduk.org for a list of Endo's, pick one or two and make a post asking for information about them via personal message only. I'm sorry this Endo that you saw wasn't more helpful.
You've had good advice about your terribl vitamin levels which are likely caused by too lower levels of thyroid hormone.
Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.
Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked.