My first post here... I've been going through the same pelvic pains as well... mine started shortly after a fall on my tailbone last June. Shortly afterward I developed severe rectal stabbing/burning pains and pressure. Although mine isn't really with sitting like most people- its standing and walking that's so painful. Painkillers never worked. MRI of the pelvis showed nothing. Doctors didn't have a clue. I still worry about pudendal nerve entrapment since they can never really "prove" you have it or not unless they actually open you up and you read so many horror stories, but I've spoken with someone who was told they had PNE and had failed surgeries but healed with TMS healing, so that made me feel good at least...
I starting getting some good, pain-free days (or weeks) here and there from late Sept. to mid Dec. and I was fully buying into TMS, but right before Christmas it began flaring up. Then I started to get scared and doubt I really had TMS again and its reached excruciating levels all this month just like last summer. Its just hard to convince myself this time that its TMS for some reason... trying to stay calm through the pain but its hard and I keep getting scared that it'll never go away. Its like on one hand I can see the evidence that its TMS- I've had many of the equivalents in the past and my wife has told me all along its TMS too... but on the other hand I keep saying "there's no way pain this bad can be in your head, and it just happened to start a week after you fell? What if everyone is wrong? You're going to be in pain forever!"
Anyway its good to read that a lot of people have overcome this. I wish Sarno had written more on pelvic pain...