Hi, my doctor has diagnosed me with Chronic Fatigue Syndrome, after standard blood tests. All the blood tests have shown B12 just above the normal range. My last result was 151 pmol/L (normal range 145-569 pmol/L). However my doctor refuses to acknowledge that B12 could be causing my exhaustion and mental fog/confusion issues. Unfortunately I live in Switzerland, and the medical profession here only seems to work within the limits. I guess eventually I will have a result below the normal range, but I am going insane trying to raise a young family feeling like this. I've also had Irritable Bowel Syndrome for years that I am worried is affecting my absorption. Should I be trying to get treatment for B12? What would happen in the UK? Any other advice? Thanks so much.