Back in 2006 my serum ferritin was 17. I was given iron tablets for a few months, it reached around 68. Last year I had iron overload. Don't know how. I wasn't supplementing iron. It reduced back to normal. Don't know what serum ferritin was at that time as it wasn't checked. Now my serum ferritin is back down to 20 but iron levels normal. I'm concerned as I'm having hair loss and a small bald spot has been noticed at the side of my head. I'm seeing GP tomorrow. How would you increase ferritin without causing iron overload?