I recently had some blood work. I have low Iron, was a 2 now up to a 30, she checked my vitamin D, it was a 7, the lowest she has ever seen and my b12 is low. I just wonder what in the heck is wrong with me? I love the sun and never use sunscreen, I eat yougart everyday. I know my iron is low b/c of my periods. I wonder if this is why I have been feeling so tired and brain fog, etc???