Hello. I've been experiencing mental problems for years before I found out I may have this disease. Through a stroke of luck, I found out that I had a b12 deficiency. I immediately looked it up, because the lack of vitamin b12 in my system seemed to be causing my severe anxiety that I had at the time. I couldn't sleep without my antidepressants, the deficiency made me severely depressed and turned me into a hypochondriac. The night I took my first multivitamin supplement, the swelling in my stomach receded and I was able to stomach a full meal again. I was also able to breathe a lot better. That was about 3-4 weeks ago. I have since exhausted my supplements and I ran to the doctor a couple of days ago. I initially didn't plan to tell her what I thought I figured out it was but after I told her my gums and tongue were swollen until I began taking b complex multivitamins we reached the conclusion that I may have pernicious anemia. The night I got my shot, my appetite seemed to have returned to me. I took a sip of milk and I could actually feel it hit the bottom of my stomach. I could also feel the cold air again. My eyes began to water that night as I sat in front of my television. Something I haven't felt since my symptoms began in February. I am only 20 years old, which is a hell of an age to be experiencing pernicious anemia. My anxiety was so bad, I didn't think that I would be alive today, despite my family telling me that I looked "perfectly fine". Despite suffering from severe brain fog whenever I was off of my nerve pain/anxiety medication. Despite the situation, I am kind of glad to have an answer after all of these months of worrying about having cancer or something else. I don't get my next shot for two weeks but I don't know if it would be a good idea to swing by the store and buy supplements. The last time I got a blood test was in November, and my RBC was fine because it was a little bit above low levels. (which may have been a bad thing because if I hadn't figured out what was wrong I probably would never have gone back and would have suffered for months or even years.) I've only gotten my first shot and I've heard that really bad things can happen if someone with megaloblastic anemia takes those huge 1000mcg supplements without getting a couple of shots first (my doctor said that I shouldn't have "anemia" per se according to my blood test results, but since I've been doing a lot better since I got the shot, I guess a b12 deficiency is confirmed at the very least.) I'm not really trying to reach a solution based on opinions from someone other than my doctor, but based on how long I'll be without my next shot, I just feel like having someone else's input would be nice.