I saw the Therapist, and it went well. Most of it was a discussion of the whats, wheres, whys, and hows of fecal incontinence and mine specifically. She showed me anatomical models of how the various muscles work, apologizing about half the time that the model was for a woman. I was surprised to find that pelvic floor muscles and the abdominal wall muscles work together. She explained a few things, like while holding your breath intrinsically weakens your pelvic floor muscles.
She did a similar exam to the manometry, although not as invasive. She agreed with the previous diagnosis of general weakening of the pelvic floor muscles, especially for long durations. There is really only one exercise to do, but I'm supposed to do it in all different positions. Standing, sitting, walking, laying down, whatever. The hard part is tightening it for any duration and breathing normally.
I have three or four more appointments over the next few months.