Silent Signals: Are You Tired, or Is It Iron Deficiency?

Unusual Cravings and Pica Disorder
One of the strangest signs of iron deficiency is a disorder called Pica. In this state, a person experiences intense cravings for non-nutritional substances such as ice, dirt, chalk, or paper. Craving ice (pagophagia) is a very common sign among those with severe anemia, which usually disappears after treatment and iron replenishment.