I'm looking for some info on 'loading doses'. I am type 1 diabetic since 1982 and was diagnosed with PA in May 2013 at which time I was experiencing confusion, poor concentration, poor memory, paranoia etc. I went to the docs who took blood and did test for depression etc. Came back to be told 'not depressed, bloods ok but Vitamin B12 is at 32 which is a bit low.' He gave me a prescription for Vit B12 and said ' you'll be on these every 3 months for life just see the nurse and she'll give you it. ' Appointments for the nurse was two weeks away but that was, according to them, ok. Came home researched, kicked up and got injection after ten days then fought for another a month later then it was 'see you in three' months. My readings have been around 200 at 2 weeks before tests.
My questions are. 1) Should I have been given loading doses. 2) why are loading doses given and 3) what would the optimum reading be.
Grateful for any info or links.