I've had a k pouch for 35+yrs and never expereinced a bowel blockage, occlusion or ileus before 2007. I had had over 20 major abdominal surgeries in that time.
In 2007 I had my 1st ileus post-op (your intestine seems to not want to wake up and you can keep nothing down)...since then I have had numerous incidents with blocages and have even had surgery for it. (a loop of small bowel was imprisioned by adhesions)...
I think that our guts can slow down over the years, they can get filled with 'stuff' that kind of blocks up the guts with years of use (certain meds, foods supplements etc), we get adhesions that glue things up in there, gut twists and a whole slew of complications that we didn't know exisited.
Most times I just suppose that it is either adhesions taking hold of my guts or a bowel twist...and deal with it accordingly...a liquid diet, walk, walk, walk,...roll around on a huge pilates ball, bounce up & down on my toes, keep moving...and go to ER after 25 hrs if it does not resolve itself...I also avoid any foods that may contribute to further occlusions...very pasty or fiberous foods (I use a blender if I cannot live without them) and keep very physically active and drink lots of fluids...no miracles, just common sense.
Hope that it was your last one...they suck!
Sharon