Hi doctors, I am facing alternative semi solid stool issue since week. Very early morning stool is normal and solid. but if I go later in a day then it appears semi solid ( like curd). I have small body weight change of 1 kg. There is no blood or anything in stool. Only have gastric issue on lower part of stomach. Stool color is also dark brown I am hypochondria anxieties paitent and under treatment since 7 month. I am really worried if I have any sort of cancer like colon or stomach. Please suggest.