Hi I'm new here. After 7 units of blood transfused due to extreme low hemoglobin, I have been diagnosed with pernicious anemia. They ran full gastro tests and scopes but all good there and while in hosptal started me on B-12 shots and iron infusion to build levels up. Have had several months of these treatments and I seem to get major diarrhea for several days following these treatments. Also metallic taste in my mouth and while I am drinking copious amounts of water and urine is clear that also has taken on metallic odor! I am responding very well to these treatments and my cells are starting to look more normal in shape and size and my oncologist is very pleased with my progress but is this side affect happening to others on this treatment? I'm dealing well with my new situation and grateful I have excellent, caring doctors who go above and beyond. I came too close to dying as I wasn't able to get a doctor for over a year and a half so decided the treatments are something I can work with for rest of my life! Does your body get used to the treatments after a few months and will these stomach upsets disappear or lessen somewhat?