Low WBC/Neutrophils and Ferritin

Recently had some bloods done because I’ve been feeling exhausted, severe hair loss and headaches .. they’ve come back as WBC 3.0, Neutrophils 1.4 (these have been declining for 3 months - HIV and Hepatitis has been ruled out) and Ferritin was 5.0 ... I’m in the Uk and I understand American results are different... but I am worried now that there’s something seriously wrong...

You have very low ferritin which can contribute to iron deficiency anaemia. Did they test your iron levels?

I had a whole load of bloods taken.. what does iron come under?

Iron studies/status. 

These are the results I have .... platelets/haematocrit/mean cell volume/mean cell haemoglobin/mean cell haemoglobin concentration/red blood cell distribution/red blood count/haemoglobin concentration