The test you are positive on is specific to celiac. Be careful with the Librax as it can have a sedating effect so driving may be impacted. I never found it to be helpful either and it is not something IMHO that should be used long term. It is time to get a second opinion from a different doctor. If your doctor objects it is time to find a new PCP. Keep eating gluten until all your testing is finished and then after testing is done go ahead and get on the diet.