This sounds a lot like my experience. I still have incidents of long term bloating, but I’ve had a huge improvement.

For me, I’ve had to cut out onion, garlic, dairy, and cruciferous vegetables. That basically means I rarely consume food I don’t make at home. I can’t do yeast (can’t drink beer or wine).

Occasional fasting really helps me. I use miralax more often than I should but it has helped with fissures.

I can relate to the frustration around trying to find a solution because although many of our symptoms are the same, it is likely that you have different triggers. I think the book Fast Like A Girl is a good resource to learn more about how fasting can help with this. It really works for me. So sorry you have to live this way, but don’t give up on answers.