Sorry I can't offer anything of much use and really hope that your GP is one of the 'good-ones' who will help in all the ways that GP's should
Neurological function essential for myelin synthesis and neural integrity
Difficulty with Memory or Concentration Vitamin B12 deficiency may affect brain function and contribute to difficulty with memory, focus, or concentration
Vitamin B12 boosts energy levels, supports brain function, and promotes red blood cell production for improved health and vitality
What should I do if Im on multiple medications and concerned about vitamin B12 interactions
They are especially beneficial for individuals with B12 deficiencies, vegetarians, vegans, or those who have digestive issues that limit nutrient absorption