I don't know where else to put this question and I really would like some answers. I had tested positive for TB around the age of 2 or so. I am now 31. In the mid-90s when applying for work I was given a TB test and had a very bad reaction. At that time I didn't know I had been treated as a child for a year on Isoniazide. My chest x rays had been clear at the time, but I was treated of course anyways. After the re test I got sick from the test itself. I didn't look into in further. But now, I am a bit worried about a few things. Is it possible for an adult who was treated 22 years ago to develop some type of TB again? What I am concerned about is perhaps the infection was never in my lungs in the first place. Also, can the TB test itself cause a former TB reactor to get sick again with the actual disease? Is it possible that if it never was in my lungs, that it did not ever actually go away? In this case would I be contagious? I normally do not worry about these things, but I have been having what seems to be some kidney troubles lately, not for sure (and I don't think my new doctor considered) the history really yet because I just started seeing him. Yes, I want to feel better, but I don't want to be a risk to others if any of this is possible. Thank you for your time