Bladder diverticulum. All the time!

Hi sir, My father had a surgery 2-3 years back for gallbladder removal. Since last few months, he's complaining about lot of sweating, bloating, gas and a buzzing sound near heart area or maybe below that. He has done all the checkups for heart and overall there was no issue. He also has bladder diverticulum surgery planned in future, can these symptoms be because of the diverticulum, he had blood in his stools recently but he said this happened to him since childhood, also he applies more pressure to empty his bladder. Please guide me sir what to do. He has recently went to the surgeon, he gave some meds for the time being, gastric and anti infection medicine.. Please sir guide me what can this be related to. I don't want anything to happen to my father as well as I can't see him being so tensed all the time!