I've been suffering from fatigue and weakness for about a year, and more recently brain fog (difficulty with concentration and focus) and headaches.
My blood tests have revealed that in the last 6 months, my ferritin levels have dropped from 98 ug/l to 37 ug/l (30-400). Red blood count: 4.57 x 10*12/L (4.5-6.5 x 10*12/L). Haemoglobin estimation: 139 g/L (130-180g/L)
Is a drop like this normal? Could this be the cause of my symptoms?