We should always take good care because in my own experience, I got TB for no reason at all. I haven't been exposed to the person who has TB, We don't have a history of TB in the family, and more surprisingly, No sign and symptoms... I just known that I am already positive when I vomited blood. My question also is that, In the Xray result, they're saying that I am positive but the result of the Sputum is negative. I had the xray thrice and also sputum. same findings...