Could My Sudden Craving For Rice Krispies And Ice, Be Related To Anemia Or Another Medical Issue?

Hi 45 and not too much overweight about 20 lb I weigh 150 I ve always ate very good country girl weigh and now all I eat is Rice Krispies and eat ice I consume no other food or drink I am anemic I don t know if that has anything to do with it but the sudden change is scared me do you think its a medical reason