"But he did say most people are in less pain after one free writing exercise."
This is new to me. I read his book but did not read this. I also never implied it.
You definitely have an awareness of how "personally" you take some things, and how reactionary you can be to them. Just like having more symptoms some days, less on others. Part of working with the nervous system is reacting less to things that stimulate our mind and thoughts. Take a breath, take a step back and being to see how you could respond instead of react when you catch yourself in these kind of situations.
Responding has choice. You can grab that second or two after hearing, seeing or feeling something that often triggers a knee jerk reaction and then can decide if you want to have little freak-out or a ridged thought over it, or if you want to soften the edges of what is going on within the mind. This is one of the big reasons why we learn to meditate. We train the brain that these little breaks are fine, and that we can respond to things with some softness and still be perfectly OK.