Hello I Have Been Suffering From Stomach Disease For About

Hello i have been suffering from stomach disease for about ten yrs.im 23 now.
symptoms are:
bloating
gas
less stool
loose stool/indigestion (main symp )
feeling of fullness
eager to pass stool but no stool passage when i sit in latrine
sometimes heartburn.

Tests I have done:
Colonoscopy
endoscopy
Ct enterography
stool test
x rays etc
but all the results are normal.


Medicine i have taken
Pantoprazole(not worked)
enzymes(not worked)
Itopride HCl(it works to some extent solid stool)
Rifaximin(works to some extent gas release)
I have also underlying condition of psychaitric problems like depression ,unable to sleep and obssessive compulsive disoreder taken anti depressents like fluxectine 10 etapram rexipra5

how to heal my digestive system dear doctors ?I have visited many doctors in Nepal .none of them can cure me.