While a definitive causal link remains unclear, vitamin D's known role in immune modulation and intestinal barrier integrity suggests that it plays a significant role in the development and progression of celiac disease.  Reduced 25(OH)D levels are associated with celiac disease.  In celiac disease, gluten can damage these tight junctions, and vitamin D may play a protective role in this context. 

I have posted a lot on here and find that the support , advice and information here is much more helpful than anything else.. ever. I am really tired of the back and forth advice in the medical community and I am beyond frustrated and over all of it currently. I will try to keep this as brief as possible. I have positive TTG IGA antibodies - and I have had these every time I have been tested. The first time they were positive I was told I did not have celiac and couldn't have celiac but I was gluten intolerant and to go gluten free. I did this for about 3-4 months, dedicated I might add, and I did feel better. However, my blood glucose went up drastically and since I was already pre-diabetic and insulin resistant already, I was then told to stop the gluten free diet and resume eating gluten as it would be better for my diabetes.I have been on a yo yo diet and roller coaster since between the gluten free and not gluten free. I decided to see a gastro doc and after him promising me I had celiac based on all my symptoms and positive antibodies but we needed that actual diagnosis in order to be treated correctly, and we just needed the EGD with biopsies to have that diagnosis, I reluctantly agreed to go fully on the gluten challenge for 8 weeks prior to having an EGD and colonoscopy, both with biopsies . The gluten challenge was miserable. At first I was horribly constipated, I gained 9 pounds during the challenge, had horrible swelling issues, terrible bloating, looked and felt pregnant, had rashes and itching, couldn't stay awake, had extreme brain fog, exhaustion, speech difficulties, palpitations, tachycardia , menstrual issues, had an insatiable hunger, mood swings, just all the things. All of this to get the tests and biopsies done and they looked "okay" .. so even though I was told to live like a celiac all of the sudden I am no longer at risk.. I am just gluten intolerant.  I also have uncontrolled diabetes that they feel is made worse by the gluten free diet, so again after all these tests, but having all the symptoms and still having positive antibodies I feel like I am stuck with the choice in regards to my health of addressing the diabetes or the celiac (still don't believe I am not actually Celiac).  So I have been having gluten off and on to try and manage my diabetes, even though most recently, because I have been so physically sick again (that can't be good for diabetes either right??)  with stomach pain, burning, diarrhea, stools that are yellow in color and contain mucus, nausea, some vomiting, sour stomach, I was told I need to just eat gluten free so my stomach will improve, and we will just put you on insulin - I don't want to go on insulin yet, and especially if I do not actually have to. I don't understand why I am backed in this corner of feeling like I have to choose to eat for my diabetes or my stomach, but not both, but I am over it.   So currently in regards to GI symptoms - I consistently have nausea, vomiting, diarrhea, abdominal pain, gas , bloating, reflux, sour stomach, yellow stools with mucus.  I am also exhausted and have been itching. I have been having increased swelling, pain, and horrible numbness and tingling, especially in my hands. I am also having an increase in relentless nightmares and night terrors. I have also been having chest pain and palpitations and tachycardia. I have even tried taking digestive enzymes to help break down gluten - (specifically the Gliadin X) and they just seem to make me feel worse. I have trouble with digestion of things like salads, beans, broccoli, etc. on a good day, and that is even worse when I have gluten on any kind of semi-regular basis.   I just can't keep doing this. Mentally, physically and emotionally I am just DONE. I already have a lot of stress in my life.. I am a single mom to a daughter who has her own health issues and is somewhat special needs. I need to be 100% to be what she needs from me, especially with all the running back and forth we have been doing to the doctors and hospitals. So I am no doctor... but I just don't think they are right about any of this. I truly feel I am celiac.. and either the damage just wasn't bad yet, or they just missed the area that has damage, or its all a precursor to full blown celiac (kind of like pre-diabetes/insulin resistance is for actual diabetes). I don't want to live miserable and feel bad all the time. I also don't want my diabetes to be so out of control I have major complications, and I don't feel like insulin is a great option if not truly needed. At this point, if I ever feel like I have a somewhat clear path of what I am dealing with,  I feel like I am looking at MONTHS to YEARS of trying to heal my body. Please help!

No, I have not been checked for any other deficiencies or issues. No one will check these things since my EGD looked normal and there was no damage. I recently saw my gastro doc and it is just frustrating. I have diabetes, which is basically uncontrolled, and I keep being told, stop eating gluten free, because the gluten free diet is contributing to my diabetes worsening. Then I am told oh just eat gluten free and you can go on insulin, which I don't feel like is a good answer either. So I end up eating gluten because they tell me it's okay or that I should bc of my diabetes. I am so sick today - physically mentally emotionally - just tired of this roller coaster ride.  I am open  for any realistic advice... I feel like I get more support here than in real life 

I will definitely be looking into this! Thank you so much! 

@N00dnutt, been there, done that! Cheers!