Fortunately, we managed to avoid hitting each other, and I made it to work safely. It still scared the crud out of me, but I didn't really realize how much until I got to work. I'd been at work for about an hour before I started shaking and freaking - it was the first full-blown anxiety attack I've had in awhile. Luckily, my office has what they call the "quiet room" - a locked room with chairs and a sofa where you can go to nap, talk on your cell phone, whatever. It was open, so I went up, freaked out for a minute, and managed to calm myself down enough to make it through. No medication, and I didn't call anyone, and I got through. That's the first time I've been able to do that by myself.
I'm rather proud of myself. All I need to do now is get through the day and make it home safely. So far, so good.