Stool studies

How does antibiotics alter the results of a stool studies ? What exactly antibiotics cause ?

Will i benefit from stool studies at age 35 when i alway have bulky fatty greasy floaty smelly stools light brown not light grey or yellow.Or just ibs?

I have had loose stool for 3 years have had colonoscopy, barium study and no answers, there is blood in it, about 2 times a week. I go about 6 x a day?

Severe diffuse colonic distention, Large amount of stool within the rectal vault with mild circumferential rectal mural thickening and perirectal fat stranding. Is this study is enough reason to have severe pain? hospital, didn't help. Advised?

What does ct scan results mean? large amount of colonic stool confirm moderate amount of free peritoneal air as well as air in the anterior wall and the retro peritoneum. The study was with IV contrast only.

35M, ALT 165,AST 379,dark urine, loose stool, gas, heartburn, occasional pain in right upper stomach. Hep A,B,C,E negative, ANA, ASMA, Echinococcus negative, VLDL, LDL and Triglycerides little elevated in Lipid Profile. Ultrasound shows normal study.

Is there a name for obsessively studying ones stool out of fear of disease? And what should one do about it?

Why is my stool so dark?

Which colour stool is normal?

Why is my stool always loose?