bad mood

Everything is pissing me off today. I don't know if I woke up on the wrong side of the bed or if the world hates me but this has been the worst day.
Many events happening in my life have led up to this mood, I'm sure. But anything and everything bugs me. The cashier at the store, my co-worker, even my own boyfriend. They all are bugging the crap out of me today. I'm not sure how to handle this mood, because I don't know what caused it. My mom is trying to figure it out and be my therapist but her doing that just makes me even more upset,.
You know the saying  "when life gives you lemons, make lemonade"?
Well right now I'd rather squirt the juice in your eye and flip off the world.

Yes, I am being extremely rude and not ladylike. But I'm in a bad mood--talk to me about it and expect a snide remark or a slap in the face. I can't handle anything.
I know I'm not pregnant, maybe it's PMS, but everything going on in my life right now can go *profanity, curse  words, middle fingers*
Sorry if you get a bad taste of me today. But I'm in a mood. And it's bad.