why am I such a psycho....

So I have no idea why I'm being such a psycho here in the last week or so. I've been mad about just about everything and it got worse AFTER my period ended. I know I'm going to catch a lot of shit for this and honestly I know I deserve it, but it got so mad that i Actually threw the tv remote at my boyfriend yesterday. And I threw it hard enough that if left a bruise....I mean what the hell is wrong with me?! We've been totally great for months then all of a sudden I'm the worst person in the world and he doesn't deserve it AT ALL! It's like I can't even stand to look at him and he's done NOTHING WRONG! I'm just being a friggin psycho! I really wouldn't blame him if he left me and idk why he's putting up with it. Does anyone else go through these random psycho weeks where you just hate everybody and everything?  I mean, I know I'm a bitch but this is a bit much even for me....