Hello! As I've mentioned before, I'm building my injections slowly up to 1mg every other day, as my system is very sensitive. I'm now on 0.7mg. I've noticed though that my stomach acid seems to have increased since the injections, and it's quite uncomfortable. I think the reason I have low B12 is that I've taken stomach acid meds for years because I had a problem with it. Has anyone else experienced this?