Jaydog,
I was plagued by spasms right after takedown, and it took a year or two for them to calm down to the point where I did not need meds. However, one of bentyl, levsin or donnatal, taken 30-45 minutes before meals, and at bedtime, completely resolved the issues. The one negative is that these meds, taken during the day, can make you feel a little loopy, but taking one at bedtime shouldn't be a problem and should really help calm down the nighttime spasms. I did try to avoid taking them during the day except when things were bad, because I would feel loopy and have difficulty concentrating on even the most simple tasks.
Motility can be screwed up by surgery and your body takes a while to adjust back to your new alignment. Chances are over time it will eventually resolve as your body recalibrates. It could be weeks, months, maybe a year or two. But in the interim you may need to take one of these antispasmodic pills at bedtime in order to have a better night's sleep, and as needed. Marijuana could potentially help as well, although antispasmodics have a targeted action to slow down the motility of the bowels.