A website about Hypochondria

I always doubt the word "hypochondria" and thought it is something doesn't really make sense. Here is some information that justify some of my thoughts.

http://users.sa.chariot.net.au/~posture/HypochondriaWebpage.html

by information from this website, "hypochondria" IS an ACTUAL desease
by acient greek's study, but because it didn't fit any one of western
medicine catagery, it was used as a substitute word for "imagined"
deseases!