Oh darling you must be so very scared and you are at an age where so much is changing the journey from a child into an adult and the hormones in your body would be playing havoc with your mind.
Do you think you could keep a diary and anytime you get these thoughts write them down and put the time of day and if there is a trigger that brings them on.It was a long time ago but I never forgot the hell my mind went through in my early teenage years,I used to think I was such an evil person with these scary thoughts going through my mind.
There was no one I could talk to and I was an only child and very lonely and shy
these were the worst years of my life.I was convinced that nobody liked me.But somehow I got through and now I am a very strong person.
Of course you must go to your Doctor and a diary would be of a great help to him/her and you.Have you got anyone to talk to now???
That is so important you have someone to turn too.
We are on this world but once and all we hope for is to be loved , happy and healthy and that is not asking too much I do not think.In the meantime do anything to take your mind off these thoughts until you can see someone who can help.
Hang in there angel I know you can do it.
Also could be bipolar. If you are literally hearing voices that could be a sign of mania. Also the mood swings and angry outbursts are signs.
If it's bipolar, some schizoid disorder, or depression there are treatments for all of them and you shouldn't worry too much just go see a doctor.
Definitely go see a psychiatrist.
Sounds like scytsophrenia to me. It's when you have moodswings and hallusinations. I don't know much more than that about it though. You should see a psychiatrist. Have you told your parents or are you afraid to?