This part:
"Dr. Apkarian’s group also looked, in a previous study published last year, at anatomical changes in the brain’s gray matter, which helps control sensory perception, muscles and emotion. That investigation found that chronic pain appeared to reorganize brain structure. They found unusually high levels of communication between two regions, the prefrontal cortex and nucleus accumbens.

“The more they talk to each other, the more likely someone is going to become a chronic pain patient,” Dr. Apkarian says."

I wonder about that. I've always been very sensitive to touch.

My dad does have some issues, he gets seizures. He's currently going through the VA to get benefits for the Agent Orange toxins that he got when in Vietnam.