Tom Reynolds new book More Blood, More Sweat and Another Cup of Tea (ok, I know I've been posting on this all week - but he's a bit of a literary hero of mine) has an entry on the dangers of researching your medical condition the Internet.
One of the first things Kezia's consultant, John, warned us about when she was admitted to the RMCH was Internet quackery.
Fortunately, I am both well-educated (this is not meant as a boast!) and (in somethings)sensible so I only take information from cancer charity and scientific sources. And Nanda has been sensible and practical enough to follow John's prescribed advice.
It does not help from the IT data security aspect that companies (such as Google and Microsoft) are now offering to keep your health data and records online!