Ok, so I repeat this a lot on CZ but know this: OUR FOOD IS BEING POISONED WITH PESTICIDES. Unless you eat total organic food, including beer and wine, you will have gut problems. The major pesticide in use, Roundup, is an antibiotic. Patented in approx. 2004. It gets into the gut, disrupts your normal microbiome and promotes pathogens. You cannot wash it off of produce. It is in dairy, meat and eggs from the animal feed.
So do an experiment on yourself. Become a vegan ( I know this is hard core for some people) for three weeks. No dairy, eggs, meat. Eat just organic. Be fastidious. See how many of your symptoms go away and how you feel. You can continue with the supplements and the DE but a better experiment would be to eliminate them.
If after three weeks, you still have issues, you may need some stool testing for pathogens in your gut. You may also have other parasites. You may have a lot of Roundup that has accumulated in your organs and bones. That is hard to remove but it can be done.
Do the experiment and let us know how it comes out. One thing at a time. Making your diet pure will eliminate diet as a cause of your conditions and then you can proceed to try other remedies. This can be a trial and error process. Do not get discouraged.