It sounds like, at least, you have very poor digestion wich can cause food fermentation, bloating, SIBO,...
One month on:
Betaine HCL + Pepsin
Increase the number of capsules by one, each day until a warming or or slight burning sensation is felt in the stomach. Then subtract one from the total number of capsules taken before that meal and this will be your usual dose.
Try plant-based or enteric coated pancreatin.
For better results combine both.
Absorb toxins and helps you to get more BMs.
Milk Thistle and/or Artichoke.
Multivitamin (whatever you like)
+ Extra C Vitamin (1-2gr)
+ Extra B Vitamins (50-200mg)
+ Extra Magnesium (400mg) (also helps with BMs)
+ Extra Zinc (50mgx2)
Omega3 fatty acids
Free of PCBs and Mercury.
And to kill some bad bacteria or parasites:
Olive Leaf Extract
After this month you can change Betaine and Enzymes to digestive bitters slowly (1 food/day every week from most light to most heavy). Keep on Psyllium husk
and Vitamin/Mineral/Omega3 supplementation. Add probiotics (homemade yogurt/kefir, etc..) and prebiotics (oat or rice bran, inulin,...).
But if you have other issues you might need to address all of them to get your health back. You cannot make a car run without the four wheels.