Stabbing pain

Sounds like adhesions, particularly since these pains are rather fleeting, intermittent, and random. Still, worth getting a general exam. They probably won't do much unless the pain is fairly consistent, associated with meals or certain activities. You may want to keep a diary on this, noting what you ate in the previous 12 hours, what you were doing when the pain started, and what you were doing when it stopped.

They might run some standard screening labs to rule out gallbladder, kidney, and liver ailments. Sometimes pain is not where you might expect it to be. But, anyone with a history of abdominal surgery is at risk for problematic adhesions. As long as it is self limiting, they don't do anything about it, because the solution is surgical release, which may lead to more adhesions.

Jan

I was going to say adhesions as well, especially considering that the pain is fleeting and doesn't seem to be associated with other symptoms. I have had similar symptoms. In my case, I will occasionally get a very sharp, split second pain in the area of the old stoma site, where I almost surely have adhesions. We already know I'm an adhesion former, since my surgeon had to cut several of them down to make my pouch (my initial surgery was an emergency, so I had a 3 step. My pouch was created during Step 2).

As Jan already mentioned, though, if the pain is becoming more frequent or more severe, it wouldn't hurt to go for some routine testing to rule out other issues.

There is no "time" for adhesions to become apparent. They form within the first few weeks of surgery, but they can cause symptoms at any time. Your intestines are in constant motion and all it takes for them to try to zig when they are tied into a zag position. I doubt that anything you take orally will have any impact one way or the other. 

But, just know that without a colon, there is no colon to "cleanse." No harm either, just saying... Now, if you are talking about a few days of a partial fast, like all liquids, then if there is any foodstuffs hung up in there causing you gas and pain, you might feel a difference. Just be careful with juices, as they are likely to cause diarrhea.

Jan