My stool structure are not proper for the past three 7 months or so. I will not say it is lose motion, but they are like sand or sediments sometime and the colour is also varying sometimes with brown or yellow. But today the stool was like sediments and the water turned into pinkish red colour. I am afraid if the problem is getting worse. I had spicy food today that might be a reason but, still I am sure there is some problem in my colon only, because 9 months back I checked my stomach through endoscopy fearing that it might be cancer, but the doctor told I am fine and its just some digestion problem. But I feel there is some problem and I need to get it diagnosed to take proper medicines. How to diagnose the problems in colon r intestines. Help me with this. I have no pains r other symptoms except I burp now and then but not excessively as earlier during the starting phase.