Is anyone on here trying to find out the cause of their b12 deficiency after testing negative for antibodies.
I had a lot of antibiotics back in 2008 after picking up an infection working on a sewer and then again in 2012 after a confirmed hpylori infection and ulcer symptoms.
I've had bloating and constipation since with occasional diarrhoea after eating onions or Chinese food.
I'm wondering if I could possibly have SIBO but don't know that much about it or really how it effects b12 etc.
Has anyone else had similar problems or any success?