oily substance after bowel movement that stings

I have a "kinked" bowel, chronic constipation and today had an oily substance after bowel movement that stung and had an odor.  I had my gall bladder removed last year.

suggestions for diet?
should i do a colon cleanse?  if so, what brand?
should i look into medication for constipation?  Amitiza or Natren?
could it be malabsorption?
celiac disease?
should i ask about taking med - Questran?



This discussion is related to chronic oily yellow diarrhea.

[doubleaaaron]

If its oily your def malabsorbing. Pancreas can cause that.  Does it hurt when you eat fatty foods? If its the pancreas it would more than likely be diarrhea than constipation. And you would probably have cramps also. If you have constipation you def need to take something to get you to use the bathroom. It will only get worse if you wait. I always used the mag-citrate that you can buy at dollar stores or your pharmacy. Its only a dollar a bottle and one should do. It's nasty tasting so I recommend you hold your nose, but it works great.