Can't be of too much help but did look up 'Walldire' and after some messing around got this - Waldeyer's Ring. Do a google on it and there's all sorts of info, mostly unintelliglble to we mere earthlings. There's enough there to keep you confused and anxious. The board's resident physician, Dr. Joshi, is on vacation right now but usually checks in at odd hours to answer a few questions.
Best of luck - let us know what the doc says on Tuesday.