I recently have been diagnosed with TB infection only due to my x-ray report. I'm feeling kinda well that's why I'm surprised that I had this. My questions are: (1) Why am I not having the symptoms? (2) Can I pass the infection to someone else? (3) Does this condition hindered me to gain weight because I really have a balanced diet but my appetite are poor and for years I am underweight. Does that mean I'm carrying it all along this years that I can't gain weight? (4) What medications should I undergo?. Im going to medication starting this day and I would just like to see if my doctor and the medications you suggested are the same.