Minimum gluten for challenge for EGD biopsy

[Katerific]

My EGD is in 2 1/2 weeks.  Since I am super-sensitive to gluten I am wondering if there is a minimum amount of gluten that would make the biopsy positive.  I tested 1/4 tsp of vital wheat gluten and was very ill with vomiting that day and then felt really crummy for about a week afterward.   Does it make sense that a severe reaction is causing antibodies and so perhaps a smaller dose would also work?  I keep thinking about wanting to get a definite diagnosis but I don't want to be so sick in the meantime.

I have been gluten-free to the best of my ability for about a month and yet I still have many symptoms and don't feel well.  How long to feel better?

[Scott Adams]

If you are getting an endoscopy to test for celiac disease you need to eat at least 2 slices worth of wheat bread daily for at least 2 weeks before the test, otherwise you may end up with false-negative results.

If you are this sensitive to gluten, can I as why you need to get this test? Why not just go gluten-free?

[Katerific]

I had my Colonoscopy and EGD yesterday.  I ate 2 slices of bread for 2 weeks.  I had bad nausea for several hours every day.  The doctor didn't see any small intestine damage but took biopsies.  He suspects Microscopic Colitis and took biopsies of the large intestine.  When I told him I was having watery diarrhea for almost a year at 10 times a day for many days, he right away said MC.  Either way, no more gluten for me.  

[Katerific]

Pathology report shows collagenous colitis in the colon and moderate intraepithelial lymphocytes in the duodenum, but no villous atrophy.  I talked to the GI doctor for 30 seconds before and after my procedure while I was coming out of anesthesia.  My primary care punted me to the GI doctor, so nobody really put much thought into my TTG test results, my genetic report, history or my symptoms.  Today, the GI doctor's nurse said no follow-up unless the Budesonide doesn't work and said celiac biopsy was "non-specific".   She gave no dietary recommendations.  I'll take the medication and based on my own research, go gluten-free and dairy-free since both are bad for MC and Celiac.  Oh, and I'm going to get a new primary care doctor.