Google searches (which usually lead to Web MD) can convince you that ANYTHING is cancer. No matter how many other causes are listed the only one you will pay attention to are the terminal ones. If this sounds like you then you're a Googlochondriac.
"Nose Bleed? Google it! Crap, It's probably nasal cancer."
This usually happens to a computer literate hypochondriac.
You are said to be suffering from Googlechondria if you have convinced yourself that there is something wrong with you by looking up your symptoms on google.
"Hey dude, I found a lump in my sack, I googled it and think I have ball cancer!"
You: Hey what's this red spot on your back?
Them: *checks* OMFG YOU'RE RIGHT! I'M DYING. I HAVE AIDS. AH. *googles: what's it mean to have a random red blotch on the back of your neck?*
You: Dude, you're such a google-chondriac