Wow, it hurts

Just like many other people here, my girlfriend of about an year and myself just recently broke up. Niether cheated, nothing horrible happened, we just weren't working out anymore and decided to call it quits, maybe a week or so ago. She told me today that she is dating someone new. When I heard this, it completely killed my world. I feel like my stomach is in my chest and my heart no longer exists. This is the worst feeling i've ever had. In the back of my head, I know that "this too shall pass", but it doesn't really help anything. I can barely sleep, I don't want to eat, or really do much of anything. I guess i don't even really have a journal, I just wanted to get it out. I don't think i've really accepted the fact that i'll never get to be with her ever again, it is very scary to think about. This really sucks.