I have a normal hunger and no ailment that I know. I often have sharp abdominal and burning pains that stay for a few minutes. I have a buildup of gas a lot. The abdominal problem started when one fine day I had a few sips of alcohol diluted with water. I used to drink but this problem never happened. My poop is sometimes in small bits sometimes long and thick. The color varies from greenish to dark brown. I have a family history of deaths related to cancer. Even after irregular work out and no diet restriction, in 2 weeks I lost 2kgs. My current weight is 94.5kgs.