If ferritin levels are low, additional tests, including an iron test, TIBC and transferrin test, are used to confirm a diagnosis of iron deficiency anaemia. Low ferritin levels indicate iron deficiency. Symptoms of iron deficiency include pale skin, fatigue, dizziness, and heart palpitations. High ferritin levels could indicate haemochromatosis (iron overload syndrome), an inherited condition where your body cannot rid itself of iron, so it accumulates over time. High ferritin levels are also associated with liver inflammation.