Not sure this will be useful, but I'll throw in my .02.
I've had some tailbone and public bone pain that are basically gone now . . . things got a lot better once I started noting when it hurt and narrowing down some causes (hard surfaces or bad posture). Katy's blog on this website helped me a lot.
Specifically, there was a post about not sitting on your sacrum, which I was completely guilty of doing and once I stopped, my tailbone pain went away. I looked for the exact post but couldn't find it and only have a few minutes. Long story short, every time you sit you want your pelvis positioned so that you're sitting tall and your bum is sticking out a little. Sitting on an exercise ball puts me in the right position automatically. Sitting on a deep couch or in the car, or slouching, pushes my pelvis to curve the other way so that my sacrum is kind of curled under and some of my weight is on top of it - then I'm in pain when I get up.
As for tailbone dislocation, I've also thought about that a bit, it may well be the part about the birth that I am least comfortable with! My plan is to keep off my back and try to give my pelvis the best possible chance to open so that there's less pressure on the tailbone.
I'm eager to see the other responses you get. Hope you find something that works to relieve the pain.
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