If you haven't already figured it out, I am pro-diagnosis and pro-testing. Whenever I can, I tell people to get tested and/or diagnosed. If you are sitting on the fence, or don't think you should get tested, here is a lovely article with four reasons you should pursue a diagnosis.
It expands on the four reasons below, and goes over them in detail.
1. You'll know what you have, and understand your risks for other, related conditions.
2. If you're diagnosed, you may be able to persuade family members to be tested.
3. A diagnosis may help you obtain accommodations at school or at work.
4. When there's a drug approved for celiac disease, you can be among the first in line for treatment.