Nettie, I craved ice last pregnancy, a friend's mum said 'oh I craved ice and it meant I was iron deficient' I was like yeah whatever, got my bloods done and was iron deficient! I'm so into the slurpees and icy poles and ice this pregnancy, and same, iron deficient again.

Not saying that you definitely are, I'd have no clue, but might be worth checking out.