You are right! The logo the have on their packages got me confused--it looks like they are less than 20ppm, not certified GF. Thanks for catching that! My brain also zeroed in on this "less than 10ppm" but I should have seen the rest...

Zinc glyconate lozenges (Cold Eeze) helps fight off viral respiratory infections by coating the mucous membrane cells to protect them from virus.  Zinc is an antiviral essential mineral. Choline deficieicy can be the cause of Non Alcoholic Fatty Liver Disease.  It is estimated by some experts that less than 10% eat the minimum RDA of around 450 mg.  It has also been connected to gallbladder disease.  Brain fog and high homosystein blood level is an independant indicator of cardiovascular disease. Eggs and red meat are the primary sources.  Three eggs or 10 cups of cooked brocolli a day.  Low vitamin D is a common denominator of autoimmune disease.  Is it a contributing factor or a result? I think that low vitamin D is maybe the main contributing factor.  Low vitamin D allows the immune system to run amuck. I would like to point out the many diagnosed with Celiac Disease went through several misdiagnoses, like gall bladder disease, and were repeatedly tested negative and then one day tested positive. Regardless of your diagnosis, you should avoid gluten, you mention it in your first post : "When I eat gluten I get a lot of mucus with my stool and most of the times it’s quite thin. As soon as I take gluten away from my diet my stool becomes normal". It can take six months to several years to heal completely.  How long I believe is directly related to how quickly you identify deficiencies and correct. Essential to my recovery:  Thiamine, 10,000 IU vitamin D3 a day, maintaining 25(OH)D at 80 ng/dl (200 nmole/L), 600 mcg Liquid Iodine, Phosphatidyl Choline.  And of course: Gluten Free.

Not all of King Arthur’s gluten free flours and baking mixes are certified gluten free. This bread flour is not. 

Bump up your thiamine dose!  You can take more if you don't feel anything after the first one.  Must needs getting to that 500mg. We need more thiamine when we're fighting an infection.  Zinc will help fight infections, too, as well as Vitamin C. They all work together. Hope you feel better!

Welcome to the forum, @MagsM, I had Meniere's.  Meniere's is caused by deficiencies in Thiamine, Niacin, and Vitamin D.  Celiac Disease causes malabsorption which affects all the essential vitamins and minerals. The B vitamins work in concert together like an orchestra.  Having a Folate deficiency suggests other B vitamin deficiencies as well.  Folate needs Pyridoxine B6 and Thiamine B1 to work properly with Cobalamine B12.  Doctors are not required to take many courses in nutrition, and often don't recognize deficiency symptoms or how to correct them.  Blood tests are not an accurate measurement of vitamin deficiencies inside cells.  Low iron correction requires copper and zinc as well as Thiamine and Riboflavin.    Yes, anemia can affect the production of antibodies and cause false negatives on tests for Celiac.  Diabetes and Thiamine deficiency can also cause false negatives.  An endoscopy with biopsy would be a more accurate method of diagnosis for you.   I studied Nutrition before earning a degree in Microbiology because I wanted to know what the vitamins were doing inside the body.  Vitamins are chemical compounds that the body cannot make, so we must get them from food and supplements.  After a few vertigo episodes and suddenly going deaf for a while, I researched and found that supplementing with  Thiamine in the form TTFD (tetrahydrofurfuryl disulfide), Niacin and Vitamin D resolved the issue.   Please ask your nutritionist for further vitamin deficiency tests.  A B Complex, TTFD, Vitamin D should help you recover quickly.   Keep us posted on your progress!