Fatigue or low energy
Weakness
Pale skin, lips, or nail beds
Shortness of breath
Dizziness or lightheadedness
Headaches
Rapid or irregular heartbeat
Cold hands and feet
Chest pain
Trouble concentrating
Unusual cravings for ice, dirt, or starch
Brittle nails
Hair loss
Sore or smooth tongue
Restless legs
Frequent infections
Heavy menstrual bleeding
Blood test showing low hemoglobin or hematocrit
Blood test showing low red blood cell count
Blood test showing low ferritin or iron levels
Blood test showing abnormal vitamin B12 or folate levels