Hypersensitivity

Does anyone have any information on hypersensitivity? My friends all think it might be something I have, and I think there is an illness hypersensitivity and sort of a... mental hypersensitivity... Here's the one thing I've found that most describes my situation:

tends to get too emotional, can't take it easy, feels gloomy and distraught frequently, more past than future, more feeling than doing, not confident in their opinions or abilities, dislikes themself, prone to paranoia, affected by the moods of others, broody, envious, ideal love seeking, expressive, dramatic, tempermental, impressionable, swayed by emotions, fears loss and separation, poor self image, gets very attached to people and things, hopeless romantic, focuses on suffering, desires security and support, defensive, suffers from loneliness, feels invisible, fears rejection in relationships, can't control romantic feelings and thoughts, existentially depressed, suffers from depression, prone to shame, prone to panic attacks, feelings guide most of their behavior, can't handle people being mad at them, dreams about a rescuer, daydreams about people to maintain a sense of closeness, familiar with the role of victim, worries they will make the wrong choices, conflicts between thoughts and feelings, desires more attention

If anyone can find anymore information on this, like self-help treatments or just more symptoms or desciptors, I'd greatly appreciate it.