Problems with my digestion and excessive gas and gas pains dear dr jeff

Hello I not sure what is wrong with my gut but do have a low functioning gallbladder and excessive gas in my stomach and bowels I did a sibo test was negative also some days If I eat loads of sugar and junk food I got bloated very badly and lots of smelly gas I tried probotics they created more gas inside and made me feel ill so I had to stop then also took up to 20 hcl with protein meals felt nothing no warmth no improvment in my digestion I have lots of trapped gas its so excessive some days it feels like its in my back I am waiting on a comprehensive stool test which has been sent to doctors data lab in the us and doing a organics profile test as I seem to get lots of trapped gas in the small and large intestines my gut flora is low but probotics seem to make it worse this excessive gas do you have any idea what could be causing all this???