Headaches and Dizziness
Low levels of iron stores in the body may cause headaches. This sign seems to be less obvious than others and is often linked with dizziness or lightheadedness. Low levels of hemoglobin in iron deficiency anemia mean that not adequate oxygen can enter the brain. As a result, the arteries in the brain can expand to allow more blood flow, causing pressure symptoms such as headaches and dizziness. Although headaches can be due to multiple causes, frequent and recurrent headaches could be an indication of iron deficiency.