Fatigue or low energy
Weakness
Pale skin or pale inner eyelids
Shortness of breath
Dizziness or lightheadedness
Headaches
Fast 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
Confirm with a blood test from a healthcare professional