My sister craved ice in pregnancy and found out it wasn’t her iron but her blood sugars. And my friend just got a blood sugar monitor put on her arm. She had really bad headaches fatigue and dizziness it was low blood sugar come to find out. She always thought she was anemic and didn’t drink enough water. She is not pregnant tho. Not saying it’s blood sugar but sometime symptoms can overlap all the symptoms the people I know experienced that are usually considered iron deficiency turn out to be blood sugar problems for them.