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
Where can I buy gluten-free stuff?
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You would think that there is enough people out there, people with celiac disease, that we'd be able to push for a better standard than 20ppm. The problem is the FDA. Too much lobbying involved. It's no different than the fight people are having with Monsanto. I hear that there are several medications that are showing promise in Canada who I think also has a better standard than us.(not positive about that though)
Make sure that you ask the doctor how long she has to stop the supplements before you have her levels tested and be sure to take them all with you when you have the appointment so the doctor knows what she is taking.
Talk to your doctor. With your family history and symptoms he/she may be able to diagnose based on resolution of your symptoms and family history. Also check with your local hospital if it has it's own lab. Mine covered any labs at a greatly reduced cost based on a sliding fee scale.
Did you have an MRI before they did the spinal? Celiacs with neuro impact will have white spots on an MRI that resemble the lesions found with MS. Many neuro doctors don't know this. I went through what you did and they did a spinal on me also based on the MRI results. If my doctor had know what the UBOs (unidentified bright objects) were I would have been diagnosed a couple years sooner than I was.
Make sure if you supplement that you ask your doctor which ones you need to stop taking and for how long before they do a blood test to check levels. Sublingual B12 is a good idea when we have nervous system issues, but needs to be stopped for at least a week for an accurate blood level on testing.
I hope you get some answers and feel better soon.