Hi Stillconfused, Apologies for not getting back to you sooner, hope you are well. False negative results are rare and given that your exposure was over 10 years ago, I am confident in saying that if you were to have been infected, it is likely that you would now be very unwell and said to be in late stage HIV infection - AIDS. Are you still experiencing any symptoms? If so, I would expect them to be much more severe, which I hope is not the case. Regardless, the 2 tests performed 12 years after a possible exposure are extremely reliable due to antibody production and the tests' detection ability (I can explain more in a second post in this thread if you wish). I hope this helps and apologies again for not being able to reassure you sooner. All the best, Becky