I'm so sorry you had to go through that, fallstoclimb. Fear sucks :-( I've had my share of close calls, and I think I've learned something from every one. I keep riding, I just get a bit more defensive for a while, but in my mind I replay and replay situations like that, and think how I can put myself in a position where I will not suffer from somebody else's mistake. Gradually the feeling of security comes back. But I've always adjusted a little bit.
Bottom line is, there is no complete security in traffic, and people do die in traffic every day. Most car drivers don't feel that fear, but that is not because they are not in danger. They are, but are habituated to the situation. The fear you feel is real and for a reason, and it will help you to be more safe. Maybe front flashers, or a really obnoxiously bright jacket will help you feel safer too.
Maybe it helps if you consider that that car driver probably got rattled too, and drove home carefully, kicking herself for being an idiot. Or you could write a letter to your local newspaper and describe the situation, just like you did here. It would reach somebody, and help them be just that much more attentive.
Good luck!
Winter riding is much less about badassery and much more about bundle-uppery. - malkin
1995 Kona Cinder Cone commuterFrankenbike/Selle Italia SLR Lady Gel Flow
2008 white Nakamura Summit Custom mtb/Terry Falcon X
2000 Schwinn Fastback Comp road bike/Specialized Jett