I have been running for just over a year and have completed one marathon and was training for my second. About six weeks ago I started feeling very fatigued and had no energy or motivation to run.
Blood tests have shown that my ferritin levels are low but my haemoglobon levels are fine. My doctor doesn't believe that low ferritin levels should cause fatigue.
I am now taking iron supplements but have been told it will take 3 months to get my ferritin levels back to normal.
Has anyone else ever had this problem?