I just re-read my last post, and realized it sounds cavalier and silly. Please allow me to elaborate and explain.
After a close call, I always feel a little doubt with other cars. On the other hand, I also have to put things in perspective. I just got my bike computer and have only put 235 miles on it. But I've done easily 1500mi in the past year. And this was the first time I had a close call. So one close call in 1500mi. is really not bad as far as stats go. I have a 1/1500 chance of having a problem with each mile I ride. I like those odds. So I just put things in perspective and realize that even if I am emotionally insecure, I am actually safe.
I am sorry that you had the fall, and hope you are ok. Did any of those kids you swerved to avoid at least stop to hep you? Did they even notice?