TB gold interferon quantitative POSITIVE

Hello Doctors My TB Gold Interferon quantitative is positive. So, a couple of questions: 1. I wanted to know how much reliable is this test? 2. How I can get to know what type of TB is this? 3. Which stage it is in? Is there any test for the same? 4. What should be the next steps. 5. I am NOT sure whether its going on since 2020 since abdominal lymph nodes were first diagnosed in 2020 abdominal ct attached. Is it going since that time? 6. Which doctor to consult for this? Right now I am having cough from past few days. I have just recovered from dengue. Also, my abdominal CT showed swollen lymph nodes in illiac fossa 2 years back and its size is increased now in the recent CT scan with the narrowing in the illeum. I am attaching my colonoscopy, both past and recent abdominal CT and TB GOLD REPORT. Please let me know all of my above mentioned queries and the next steps. I am so worried and constantly losing weight since December 2021 (lost 15 kgs) Thanks