<<Disclaimer: Verify this information before applying it to your situation.>>

I shall never forgive myself for not finding a way to convince my sister to try a gluten-free diet. I even took her to a national celiac two daymeeting, and the subject came up in a talk by Dr. Fasano, but she could not identify herself (I could!) in what he said.A month - or even two weeks - on a completely gluten-free diet is surely not anything that would hurt anyone, and you will probably haveto make up some excuse - like not wanting to feel so strange by having to eat gluten free alone- and get your "perhaps " person on a gluten-freediet. It would be worth the effort on your part. My sister died seven years ago. When she was dying she told me that her husband had told her she had the most miserable disposition of anyone he had ever known. In my mind I felt sure that complaint was all because of her diet....but it was toolate to change their relationship...nor the way she treated me and her children.I wish you success, and I feel, unfortunately, that
 you will NOT be able to enlist a doctor in talking her into trying to eat gluten-free. When I self diagnosed, after ten years of going from one doctor to another and then another, etc., I returned to the last doctor and told him I had found the answer in a book about gut symptoms, and finding that my symptoms met all the ones listed for celiacs. His response was that he would put me immediately back on a high gluten content diet for three months and then do an endoscopy and have a certain diagnosis. My response was to say, "Like hell you will!"So simply continued my gluten-free diet/ Eventually a son, and then a grandson both have gone gluten-free and feel healthy and happy.I hope you have other equally positive responses.********Yes, it is common for gluten toxicity reasons as well as malabsorption reasons. You can Google much on this topic.********Sorry I don't have any references but we have several people in our family who fit into this category and
 have been GREATLY helped by going GF. Maybe your relative could try a strict GF eating program for 30 days. That should be enough time to show if it would make a difference.********Depression can be a very serious problem.  He/she should be seen by a physician who can refer to a depression specialist, if possible.********I just posted a study re gluten and depression on my Facebook business page.
If you are on Facebook, you can input the name Natural Food Works in the search
bar to bring it up. It's pretty definitive...*******i wouldn't be on the GF diet if i didn't have to be, i think it contributes to depression rather then the other way ...  i have been GF for 22 yrs....don't do it!
********My former nanny did not have celiac disease but was allergic to wheat as a child and thought she had outgrown it by high school.  After starting her freshman year at college, she became so depressed that she had suicidal thoughts.  Her mother reminded her to try to stay off of wheat to see if it made a difference.  She went completely gluten free and her depression left.  She is convinced that there is a connection. One of the celiac symptoms mentions behavior differences.  Before  my son was diagnosed, he would flip out over catalysts that didn't match his reaction.  This completely cleared up when he went gf.********

*Support summarization of posts, reply to the SENDER not the Celiac List *
Archives are at: Http://Listserv.icors.org/SCRIPTS/WA-ICORS.EXE?LIST=CELIAC