Can someone tell me what a healthy ferritin level is? I've been down to 7 in the past, and felt better after a month on ferrous fumerate. I'm now on 13, which according to my practice nurse is within 'normal' but I'm having loads of palpitations which were my main symptom when it was low before. Does anyone know if 13 is low? I thought approx 70 was optimum, but apparently I've never been above 21
