I love this site and all of you are either on top of the knowledge tree or like me fighting through the forest. Please point me to where the optimal ranges can be found for Thyroid tests, bit D ferritin lepton and antibodies. I have underactive thyroid and Lupus. I have about 12 months or results in a beautiful table but haven't a clue what is high or low. All I know is I still feel 💩 on Levo but have a gp who has selective hearing. Thanks in advance.