I am afraid I must disagree on your point "telling people to avoid using Google to guess their diagnosis. It is just too scary". The googled information I found before my local pulmonologist visit definitely saved me from more painful surgical procedures and gave me a much better prognosis. Because I knew what was in the scan reports, I realized the local Pulmonologist was wasting time with unlikely diagnoses and tests and lacked expertise in lung cancer. I should have been referred to someone else because my scan reports talked cancer! Fortunately, my expensive Medigap insurance allows me to self-refer and I went to Mayo. When I worked in Corporate America we always said "knowledge is power". AND people should research their doctors to be sure they are board certified and qualified!!!! My local Pulmonologist's major interest was Asma!!! Of course, it takes work to build up the knowledge, and learning what a serious source is. But it is only scary when one does not know, and one cannot decide.