Just because your thyroid shows up normal does not mean it is. Some poeple manufacture enough Thyroid hormone whihc mean that the tests will come back as normal. But that does not mean your body is utilizing it correctly. It certainly is not normal to have ice cold hands and feet. I know of a few people who were prescribed Thyroid meds based on the cold hands and feet alone even though their tests came back normal. trying to find an open minded doc is hard though. I alsways though my thyroid was not 100% , but I am finding I am getting along much better now with all the supplementing , seas salt adn healthy diet. Seems the more minerals I get into me the better I am.