"dismiss"..."nothing but anxiety": Your question seems to imply that a psychological etiology is somehow less important than a physical etiology. Wouldn't the most important thing be developing a standard reproducible diagnostic criteria, then working on preventing or curing the problem? The parent comment seems to me to be a well-reasoned, nuanced description of the difficulties of dealing with this clinical scenario, and doesn't impose any value judgements regarding the 'intrinsic worth' of a medical symptom or etiology.