The general category of disorders that move in the direction you are describing are called "Factitious Disorders." The most prominent example of factitious disorders is a condition called Munchausen Syndrome, or the more media-friendly, Munchausen by Proxy, whereby a person will intentionally either pathologize or actually make another person ill in order to receive the secondary gains (sympathy, empathy, well wishes, bonding, etc).
If you are satisfied with the response, please hit "Accept." That is the only way i can receive credit for my answer. Thanks-