Hello Doctor, I have been having digestive issues for the past 1 year. I eat properly, but I feel that I am not gaining weight, and my weight has also been decreasing. My stools are often small, thin, and fragmented. Sometimes they appear like small pieces or grains. I also experience gas and bloating, especially after eating at the office. I was diagnosed with TB about 5 years ago. I would like to know what could be causing these symptoms and what tests or evaluation I may need.