I remember attending an IPMS (International Plastic Modelers Society) exhibition and contest several years ago when the TMS pain in my lower back was quite severe. When I stood on linoleum in a crowd (feeling claustrophobic and trapped, on the spot because my models were being judged?), pain just kept increasing in my left leg. But when I went out into the lobby away from the crowd where I was standing on a soft carpet, the pain would go down and disappear. Didn't realize it at the time, but my symptoms were intensifying in response to a feeling of being trapped in a crowd, something I remember way back when I was 4 or 5 and attended a dog show with my parents. Obviously something deeper going on, huh? You don't have to know precisely what caused the original emotion, just as long as you know about it and acknowledge it. You're always carrying around emotional baggage left over from events so far back in your childhood you can't really uncover them completely, but they're sure there nevertheless. Be interesting to study the origins of that leather vs. cloth response. Sure sounds like our minds still operate according to the symbolic categories of medieval magic and mysticism while the doctors are trying to heal us based on the post-Cartesian assumptions of Newtonian physics.