Hi, I have IBS too, and I’ve been having several bowel movements a day. I n my case I get dizzy and I feel I’m do.

Anyway, I’ve been taking Benifiber but my acupuncturist told me to stop it because I don’t even remember now. Then after being too constipated I started Metamucil along with a very close to the rules FODMAP diet. Then the bowel movements again. I realized I was consuming too much fiber. So I dropped the Metamucil and I got better. Then again several bowel movements. I would be in the toilet for about 30’ to the point that my legs would start feeling numb. The Dyciclomine 10mg would help, then all over again.
Mys Gastro dr. Told there is a point that medicine can do only so much. I got a referral to a psychiatrist. Fast forwarding now, psychotherapy, acupuncture, herbs, and keeping an eye on my diet have done wonders to my health. So now I have most of the time only one bowel movement per day. From my experience, I would say that the psychological part is 50% part of the problem.
So my routine now is, as I wake up, first thing I do open the windows in my bedroom and let the light come in. Then breakfast and all the things I need to do in my day, plus an hour or 30’ workout of any type (swimming, walking, machines, yoga, water aerobics or whatever is and I’m available for. Also acupuncture and psychotherapy once a week.
I have have stopped the Dyciclomine which I was taking up to 80mg per day (the maximum per day one can take). When I feel the pinching pain in my colon, right away I start having two capsules of IBguard before meals, I eat a very close FODMAP diet, and if I start being gassy, I take two capsules of GasX maximum strength (maximum allowed), I get back to normal.
In summary, one needs to learn what routine is better for him/herself and keep a close eye in the mental health. Your gut and your brain are more connected than anyone might think.
If you want, I can answer specific questions, one at a time.
Best