Im new here.....So I have for a long time being borderline on iron deficiency anaemia, but recently had a below range reading for serum Vitamin B12 of 156ng/l (Reference limits:180.00-1000.0) and serum ferritn level of 8ug/l (Reference limits 10.0-300.0). However doctor hasn't given me any indication of retesting the levels, and just suggested taking over counter B vitamin Complex. I was referred to neurology in May 2017 and only just got my appointment through for January. This is for severe pins and needles in hands and feet and numbness/loss of feeling. I also experiencing depression and irritability. I have reoccurring ulcers in my mouth and feel completely drained. I have been complaining of the same symptoms for over a year now. I should also mention I have a sibling diagnosed with Pernicious Anaemia. I haven't been told about my Haemoglobin levels this time but they are usually bordering on low range. Now I have seen two doctors who have denied my symptoms are possibly due to my as they called it 'slight' deficiency. However a nurse I saw today for the ulcers and sores in my mouth said that all these symptoms were highly likely due to the deficiency and that the reading is low enough to be experiencing these symptoms. Can anyone advise best way forward. What treatment should I be offered here, and should I pin hope on neurologist appointment that the neurologist will pick up on this and do the relevant tests. In addition to the deterioration of my health and wellbeing I'm struggling to work as I have a very energetic job and self employed so its affecting me significantly. Any help suggested. If no luck I may pay to go private.