Four years ago, I could hardly make my son's school lunch and give him his breakfast at the same time. I became so overwhelmed by these simple morning preparations that I felt like I was spinning, not exactly dizzy, but almost. I was very fearful of many experiences: airplane travel, being in the house by myself overnight, finding a tick on our dog. My physical reaction to these and many other fairly ordinary events was involuntary: pounding heart, muscle tension and pain. I