I have also lived with the severe, chronic belly bloat (appearing 9 months preggo most always), as well as my flushes not producing stones.
A few things I'd definitely recommend: get a colema board or go in for a series of a few colonics as soon as you're able (enemas only really get into the large intestine). Jill, on here, reminded me of their importance, and I'm already seeing the benefits again, getting back into regular use. I suspect we both have old fecal matter lodged up in the small intestine, preventing the gallbladder from releasing stones, and in my case, bile as well. Liver Flushes will not be effective until we better unblock our intestines.
The belly bloat seems to be a combination of a thinned mucosal lining due to parasites, leading to a severe leaky gut. Do you also have food and chemical intolerances? Also a factor is the presence of bad bacteria and the absence of good. S. Boulardii seems to be a miracle worker in this regard. You can also try slippery elm for healing the gut lining.
Finally, I would strongly recommend cutting out the fruit, and focusing more on vegetables, avocado, non-gluten grains like quinoa, millet, amaranth, and buckwheat. The sugars in the fruit are likely greatly aggravating your bloat.