Okay well I don't think I have that condition. I will take your advice. I did leave a message with my doctor about this because it is highly irritating to me that I asked her to check this 6 months ago and she didn't. I just wanted her to know what she missed and I was told they will possibly want to do injections?! Is that necessary? Also is it likely this deficiency has been the source of some of my PN and other pains and problems? Given that I have been tested for a number of things I am hopeful this is the real issue.