Sorry, I have been doing a lot of traveling for work lately and have not had enough time to be on FBBO much - just saw this thread. Having said that, this is one of the more important threads to reply to.
Prayers sent for you, your family and especially your wife.
Keep positive, but ask questions, write stuff down and research! Search the internet about various symptoms, issues and potential causes. If you think something has merit, engage the doctor with questions. Besides being on your wife's side, the next best thing you can do is be her advocate with the doctors. Good luck and hang in there - we are all pulling for you...
Hawk