Hi, I am new to this site. I am a 72year old female who has had PBC for 23 years. I recently had an endoscopy because I was experiencing stomach distress. Three endocrine tumors were found and I was diagnosed with autoimmune gastritis with mild atrophy. Because this can cause one to become B12 deficient I was tested for B12 levels and found to be low. I am now on monthyly B12 shots. I would like to know if anyone else has a similar problem and what treatment you have been given. I feel I need more information. I will be seeing my doctor tomorrow. Thanks for your help.