What is wrong with me?

I surfer from aneamia but have been told by my dr that because of my change in diet I no longer need to take my iron tablets... But I have noticed that I occasionally get White cirlces on my arms and my lower eyelids when I pull then down they are pure White... I know this is not meant to happen do u think I should go back to me dr and tell them what is going on or is it just down to the fact that my diet has changed and my body is just getting used it... I don't know what to do please help. (I appologise for spelling errors)