One thing that comes to most people when they get into TMS or any other psychosomatic condition, is that they associate the cause of the pain from the brain with it being "in your head". People automatically think that someone is suggesting that they are crazy or the like. I dont know if you have read the whole books and done any of the exercises, but the physical symptoms of TMS/MBS are totally real. You have only one nervous system. You dont have a nervous system for your muscles and another for TMS symptoms. So, when you get a pain, your brain uses your nervous system to arrest some amount of oxygen to a specific part of your body. When a muscle stops getting the normal amount of oxygen it creates pain. The muscle is asking for its oxygen to be brought back. Travell and Simmons did extensive studies on trigger points and found out that what makes up trigger points is oxygen starvation. This is the basis for Paul Davis books on trigger point therapy. So basically what you get are trigger points in your muscles. They are terribly painful and dont show up on either MRI or X rays. Oddly, they can be seen with some special type of sonogram, but they are very small. Next time you buy raw steak cut a slice and watch the muscles fibers,now imagine a spot smaller than a pin head in one of those fibers not allowing blood to flow thru that point. There is your trigger point. You can have not one but several on one spot, and your muscle will bulge a little bit in that area. You can feel them with your fingers like you described, and if you massage them, they will be incredibly painful. It is no coincidence that what Sarno points out in his own experience also mimic what others in other areas of medicine have found out. If you massage this spots carefully after applying heat, they will start to dissipate and you will feel better, but what is keeping that knot is the brain because it is sensing fear. As you progress in allowing to feel the pain safely and assuring you that there is nothing to be afraid of and that is only mild oxygen depravation, your muscles will relax and the pain will go away. Understanding the method your brain uses to cause you this pain is also liberating and will help you trust that it is TMS. If you have not read the books completely or done any journalling or affirmations, start by that.