Your doctor may be willing to test you for celiac disease, but just be aware - even if the test does not show celiac disease, you STILL could have some significant gluten intolerance. And if celiac disease increases the risk for lymphoma so much, what effect might gluten have even on people who DON'T have celiac disease (in terms of lymphoma risk)? So I would get the test, but afterwards I would try a gluten-free diet regardless.
