I started taking this based on you mentioning having doing the same a couple years ago. I had IBS (or at least my Dr suggested as much?) 5-6 days a weeks I’d wake up and the plumbing was like I had drank Tijuana water. This had been going on for 6+ months. I tried a non dairy diet, no help, no alcohol, nope. Then started Inulin, only a teaspoon a day along with some OTC fiber pills in the morning. I’m 90% better and have sustained that level for well over a year. I can’t think of any other changes that could explain the improvement.
I very much believe we have a solution inside of us that our general lack of fiber has nearly starved to death.
I would say you could get additional fiber sources that could even more helpful. I do encourage using Keto breads like Hero or Sola Bread-type breads. They taste good and remove extra carbs from our diet, replaced with no calories, due to the resistant starch used.
My colon pains started a short while after a ten day course of antibiotics. I felt pains each corner of my large intestine and in the whole last portion, as well. It wasn't going away. I took probiotics and had some prebiotic fiber, but very small amounts. I did try to get more dairy, but it didn't seem to work. Moving over to getting 35+ grams of soluble fiber a day from Keto bread products made it progressively better, until every last pain went away—permanently. Even when I don't eat the fiber for over a week at a time, I am still fine.
Again, I can't stress it enough that fiber is really needed by the vast majority of people, and they just don't know it.