Hi, my name is Jackie and I was diagnosed with pernicious anemia about a month ago. I'm allergic to 98% of medications and vitamins or have severe side effects. I tried the B12 sublingual under the tongue foe almost three weeks until my stomach ripped apart so bad I stopped to see if it was from that vitamin. Apparently yes because that pain stopped and I don't think my body was absorbing it anyway. My brain is so screwed up, I can't stand it. Nauseated, tremors off and on. I wake every night with tingling in the sides of my neck and tightness. Also tingling in feet and legs and shoulders off and on. I'm deathly scared of reacting to the injection but I don't think I have a choice and I would definitely start at a super low dose but of course, my primary Doctor is oblivious and uncooperative. I have a bone Heath Doctor, cardiologist and gastrinologist all in the picture. But life is tough 24/7. Does anyone have a suggestion on how I can get any B12 in my system so I can feel even a little better? I'm now desperate and living hope that I will ever be normal. Thank you!