This Celiac.com FAQ on celiac disease will guide you to all of the basic information you will need to know about the disease, its diagnosis, testing methods, a gluten-free diet, etc.
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What are the major symptoms of celiac disease?
Celiac Disease Symptoms
What testing is available for celiac disease? - list blood tests, endo with biopsy, genetic test and enterolab (not diagnostic)
Celiac Disease Screening
Interpretation of Celiac Disease Blood Test Results
Can I be tested even though I am eating gluten free?
How long must gluten be taken for the serological tests to be meaningful?
The Gluten-Free Diet 101 - A Beginner's Guide to Going Gluten-Free
Is celiac inherited? Should my children be tested?
Ten Facts About Celiac Disease Genetic Testing
Is there a link between celiac and other autoimmune diseases?
Celiac Disease Research: Associated Diseases and Disorders
Is there a list of gluten foods to avoid?
Unsafe Gluten-Free Food List (Unsafe Ingredients)
Is there a list of gluten free foods?
Safe Gluten-Free Food List (Safe Ingredients)
Gluten-Free Alcoholic Beverages
Distilled Spirits (Grain Alcohols) and Vinegar: Are they Gluten-Free?
Where does gluten hide?
Additional Things to Beware of to Maintain a 100% Gluten-Free Diet
What if my doctor won't listen to me?
An Open Letter to Skeptical Health Care Practitioners
Where can I buy gluten-free stuff?
Support this site by shopping at The Celiac.com Store.
jmg has given you good resources/links.
I used to have constant issues with ear infections that went away when I went gluten free.
And recurrent bronchitis they I never have now.
NCGS can cause low grade inflammation that you don't realize at the time . .. till you stop eating gluten.
That said have you been checked for a UTI infection. It is not uncommon to have low grade fevers when you have one.
My friend at work recently had a bad spell of health and the only symptom she complained about before coming down with a bird flu virus was a low grade persistent fever (not for a few months but for a few years).
The last time I had bronchitis before it became pneumonia I had a low grade fever in the few months before my pneumonia diagnosis.
Keep looking is my advice to you. Low grade fevers are fighting off an infection . . sometimes we don't know why until other symptom's present themselves.
I do know that when I went gluten free most of my chronic health issues got better. I can only assume it (gluten) was triggering inflammation in my body.
I hope you find out what is the cause of your fever and that being gluten free helps it.
****** this is not medical advice
just some of the ways going gluten free helped me and some possible other causes of a low grade fever that have happened to myself or others that I know of.
"If the biopsy is negative, then is there another test that can be done to make sure I really don't have celiac? "
Yes, we can do a genetic testing for the celiac gene, I think it is the DQ2 and DQ8 gene, and maybe one other. If you don't have one of these genes, I was told that you can not have Celiac.
See if your insurance will pay for one of this test. If not, I think you can pay out of pocket for about $300.
Spicely Organics lab certifies all their spices gluten-free. The turmeric and curry powder they have is safe, also Thai Kitchen Curry Paste is certified Gluten free....I like you do not trust the normal curry powders or most blends with it.