i hate pms

For the last couple of days, I've been just filled with irritation. There is something bubbling over in my brain; I'm jittery and the main thing I want to do is break something. Or scream and pound the floor. And yes, I have been getting exercise -- I started jogging again this weekend after a couple weeks off due to cold. I'm annoyed at tiny little things, but I'm also depressed and feel hopeless, hapless, unable to achieve anything or make the smallest bit of headway anywhere. And the cramps haven't even started this month...