My brief anger and tantrums

Every so often something random starts to mildly bug me, and if it's major I get obsessed with it driving myself to extreme fits. I might get a little sassy or hurtful at this point if it's something mild. If I dwell on it or it persists, I start snapping. I start to hate the idea of said thing. I start yelling at this point. I remember everything that makes me angry and I get in one of my moods. I start trying to put other people in a bad mood. I say hurtful things regretting them as soon as I say them. This never happened a year ago. I'm not only angry at that moment. I get really sad and depressed. If I get quiet or start yelling I'm probably considering self-harm. Is something wrong with me? I get mad and really upset at trivial matters and start thinking awful things. I start thinking about hating things, people, myself. I want to hit and throw things(Never people.) Could this be from abuse from a parent or is there something wrong with me? I don't want to hurt my friends and family. I used to never be like this.