I finally got my doctor to agree to do an intrinsic/active B12 test as my serum B12 was 192 ng/L and my mum has PA.
Rang up for my results and the receptionist said it was "normal". So I have paid £5 for a copy and have them here but still none the wiser.
Its says my levels were 2.3 U/mL with a range of 0.0 - 10.0
Any ideas on what this means.