A 100+ year old joke was that 'if you visit a herbalist you die from the disease, if you visit an allopathic doctor you die from the treatment!'.
Ultimately, if someone is helping you with your health and they aren't looking for the root cause then sack them. Treating symptoms is necessary sometimes, but it is not real healing.
For what it's worth, I know that IBS related problems can vary between people (I even met one lady who had had part of her gut removed to try to 'treat' the crohn's disease..).. However, the people I know who have had the most success in treating it, did so through nutrition and stress alleviation. Stress is a large factor and not knowing how to resolve your problems is stressful. The body actually usually knows exactly what it needs and so the lack of receptivity of the thinker to the body's own internal signalling is also stressful. The more an individual aligns towards inner listening and meeting real needs, the more stress is reduced (including sub conscious stress) and the closer to healing we get. In reality, relying on external doctors in and of itself is a cause of stress that can exacerbate illness.
It's been a long time since I watched it, but I think the documentary 'super juice me' includes a guy from Canada who healed his gut problems using a specific juice (red cabbage iirc).
So true about what kills you, either the disease (probably toxicity) or the treatment (definitely toxicity).
We are operating on this principle now. Listen to what your body tells you, and make sure you drink enough high quality water, without which you cannot detoxify, the crux of true healing. And I do not mean water that your refrigerator filtered for you. Go draw some from a spring yourself. That's what I do. It's easy.
I remember that red cabbage juice guy. We could not do that. My kids were all very young when diagnosed, and were threatened us with CPS if we did not take them to allopathic doctors. I was young and should have fled, but instead complied. One of my children was gravely poisoned for a dozen years, and did not make it past the age of 27. The death certificate said "complications of crohns," but I know it was iatrogenic disease that could no longer be controlled by any medications or remediated by any modality. There is such a thing as too much. We tried everything, and I mean everything.
We eventually had some success with the GAPS diet, but I honestly think just making sure you eat organic, preferably grown and raised yourself or by someone you know and trust, and knowing that healing is an innate function, will be enough to keep you healthier overall. Vaccines are very damaging to your innate healing abilities, which should not be surprising since they are designed to fool the immune system, if there is such a thing. Do not vaccinate for anything ever!
The western medical model instills fear, and thereby weakens you. It tells you that cancer (for instance) can strike anyone at any time, that there is no reason for it, that it's just a crap shoot. What a load of BS. Same for any disease. Or disease gets blamed on your genes - more BS. Genetics is eugenics repackaged. In both cases, you are told only an external source can help you, which disables to a great extent your own power. We are lowered to the energy level of any practitioner we consult, so one must be very careful whom to trust.
And then there is the pollution factor. When we bring these toxins into the world, then into our bodies, we eventually bring them into soil, water and air, polluting everything.
We must stop using allopathic medicine except in dire instances, such as car crashes. For illness, you will only make your condition worse, or other conditions will crop up.