HLA DQ8 Positive - This means you have the genes to get celiac disease, which ~40% of people have as well, although only ~1% develop the disease. GLIADIN (DEAMIDATED) AB (IGA) 96.8 HIGH <15.0 Antibody not detected > or = 15.0 Antibody detected Since your biopsy was negative (you're correct that at least 6 samples should have been taken), this could mean non-celiac gluten sensitivity.  Approximately 10x more people have non-celiac gluten sensitivity than have celiac disease, but there isn’t yet a test for NCGS. If your symptoms go away on a gluten-free diet it would likely signal NCGS. My question is, were you doing a proper gluten challenge before your tests and eating at least 2-4 slices of wheat bread worth of gluten per day in the 6-8 weeks before your blood screening, and at least 2 weeks before your biopsy? This article might be helpful. It breaks down each type of test, and what a positive results means in terms of the probability that you might have celiac disease.       

It is very doubtful that prescriptions medications would be cross-contaminated. It's not impossible, but most companies make many different medications and have very strict protocols for their manufacture.

I would not say that milk is bad for you, but for those who have lactose intolerance, milk allergy, etc., it's best avoided. 

@Sammy Web, I'm sorry if I offended you. I was just seeking some clarification. Colloquialisms vary from place to place in the English speaking world. They can even differ from place to place in a given English speaking country. 

Hi Sammy Don't worry I understood the English, and I'm from the UK.🙂 Trents is quite right, though, it is possible to feel perfectly well and have coeliac disease.   Cristiana