Hi There,

I Assume u did TB Gold test, which may come back as positive. The next thing you will be doing is Chest X-ray. If it comes back as normal, you can get a letter from your GP or infectious specialist to support your visa. I feel you may have exposed to TB. It doesn't mean that you have it. You could have picked up from someone. If you r not infective to other, there is know need for any treatment neither you should worry. It would be false positive of your gold test.

Hope this helps

Good luck