Guys, need serious help, to find this psychological problem?

Ok, as a kid, i used to watch a lot of tv. I've seen lots and lots of movies, cartoons, doentaries of many genres. Here is the thing, I get seriously involved when i watch stuff on tv or at least i used to (not anymore). There used to be a lot of things as u all know, like happy scenes, sad scenes, comedy, tragedy and so on. All these have specific music, tone and a feel to it. So when something bad happened on tv, like when people die or get some sort of disease or end up in an accident and so on, I used to imagine that those sort of things might happen to my own family, friends and people i know and I used to be so scared for them.(This disorder however i believe is explained before by people, but the next stated one... i don't know) And I used to get really affected by the things happening on tv, like i would feel really happy if i see a happy scene or extremely sad when i see a depressing scene and so on. After yrs of it, I actually came out of those things and knew there is nothing to worry about. But as a kid, certain tone, feel, lighting, atmosphere have all been engraved in my mind related to specific feelings. Like a hospital setting with a death in the movie, gives a depressing feeling, and now when i see something similar in real life (be it real hospitals, or even normal houses that has a certain resemblance to that hospital) to that atmosphere and ambience, I get depressed. If I had in the past seen a movie with a happy setting in a certain location, when i see the same location or atmospheres similar to the location, I feel really happy for no reason. Same applies to music, certain music makes me sad, certain happy but the music that makes me sad doesn't necessarily be a sad tune used in conventional media and so on. If I end up in an atmosphere that makes me sad for the above stated reason, even if good things happen to me, I do feel sad and If I am in an atmosphere that makes me feel happy, even if bad things happen, I get a peaceful and jolly feeling. It's kind of difficult to explain but i have tried my best to say. Does anyone know the name of this disorder? Has this been explained by anyone before?