I realize that this was an old post, but I was hoping to get some help. My mom was suffering with stomach ulcer pains and was taking all sorts of stomach meds including Nexium. Last October, she was so anxious, she had to stop working and it took over her life. She then was put on Xanax (still taking the Nexium) and her doctor prescribed too much. She was put into a mental hospital and misdiagnosed with Schizophrenia!!!!! They gave her all kinds of mind altering drugs and the next thing we know...a year has gone by. The story is much longer than that, but she is now only taking Xanax and Exelon (Alzheimers med) and has been classified as an Alzheimers patient. The more I read, the more I think she has a B-12 deficiency. Could this be what has caused her problems for the past year!??? Anyone hear of this or experienced this in their life? Nothing is helping her anxiety and we just don't know what to do!!!