I have chronically low ferritin and vitamin d levels, (ferritin under 5 for 18 months and vitamin d under 40)
My endo said that my vit d was fine and that my ferritin can only be due to heavy periods which I don't think I have. Is he correct? Or is it something to do with being under active? I take 150mg levothyroxine a day, reduced from 175 6 months ago.