Ah, ok, the way you said that you went everyday and then out of nowhere couldn't go, made me think you never had the constipation problem before. Sorry for the mix-up. If you try fiber, i would start out very slowly. Too much fiber can actually make things worse. I remember starting Metamucil at 3 teaspoons a day and became really bloated and unable to go. I would start at one teaspoon a day and wait a week or two to see how it works. If you still can't go and aren't feeling bloated, then you can add another teaspoon. I imagine Citrucel is similar to Metamucil (being fiber) so I would go slow with it. Remember to drink lots of water while taking it. That is how the fiber works, it absorbs water and makes the stool larger and softer and thus easier to pass. But, as I've said, too much at one time could cause it to swell up in one spot causing constipation and bloating. I felt miserable when that happened to me.
Yes, I understand about the barium enemas, drinking barium, colonoscopies, endoscopies, etc., etc. It's a horrible process to go through, and it's made worse when the doctors just send you home with medicine that doesn't work, or tell you to take fiber. I know this operation is a big step with risks of its own, but I need to try something, I'm tired of feeling like crap....literally and figuratively .