I am 36 year old woman and I'm pretty confident that I have a gluten intolerance or possibly Celiac disease. For my entire life I have been asymptomatic but a few months ago I developed a bad cold virus while simultaneously suffering with some severe emotional stress. I developed bad muscle cramps and - for the first time ever - some GI (reflux/indigestion) and bowel problems, burning tongue and white tongue, excessive post nasal drip, & a few mouth ulcers.
A friend of mine who has Celiac suggested I try going gluten free. I did so (with a few mishaps involving glutened juice) and all of my symptoms - disappeared. Prior to trying the gluten free diet, my doctor ran standard blood tests for a physical, ran a local allergen panel, took a culture of my white tongue (I thought that might have been thrush due to antibiotics I had been on a few times this year for dental work), had an abdominal ultrasound (blood in urine), and chest xray (for congestion/post nasal drip). All of my test results came back normal.
My father passed away in his 40s from Pancreatic Cancer so she also ran my amylase levels - also normal.
On my follow-up with my doctor I asked her if I might have a gluten intolerance - she said it was pretty common and she gave me another order for blood work to check the gluten antibodies.
I have been reading up on gluten/Celiac testing and have read that I need to re-gluten to get accurate test results. I had been "gluten free" for a week. For the past two days I have eaten bread and pasta and my white/burning tongue and bowel issues have come back. I have been taking Claritin but do believe my PND is back too. My question is (sorry for the long into) how long do I need to "re-gluten" after going gluten free for a week to get an accurate blood test? I would like to return to a gluten free diet as soon as possible but don't want to influence the blood test results. Also given that I've never had any recognizable symptoms (particularly bowel problems) prior to the past few months, would an ENDO biopsy even show anything? If the blood tests show possible gluten intolerance/Celiac I have no problem going gluten free. I don't want to continue a gluten diet just to get an ENDO biopsy which I probably wouldn't be able to schedule for another few weeks. No one in my (very small) family has been diagnosed with a gluten intolerance, although my uncle was diagnosed with diverticulitis a few years ago.
Any advice/insight would be greatly appreciated. This is actually the first health issue I've ever had so I'm pretty much a novice in the world of doctors/tests/blood work/asking the right questions to the right people and pushing for the right answers.