After eating food, sounds are coming from abdomen like gud gud ,gas passed through anus, hard stool passed always (constipation). Already suffering from ano rectal disease (piles, fissure and fistula) surgery done. Water intake, high fibre diet, green vegetables etc already taken. But no improvement in hard stool. What is the reason and diagnosis and treatment pls. Weight loss approximately 7 kgs after surgery. Hba1c range in prediabetes stage .5.9.