What Does This Result From Blood Test Indicate?

I have been told that my blood tests are all normal with the exception of my esr and crp.As an aside my ferritin levels have been around 10 for a few months but have only had one month of iron tablets.Do you know what this could mean?I have beeb exhausted and aching all over. Just feeling really poorly although I am very functional some days I can t do anything from tiredness.Any advice would be appreciated.