Hi ,since you have done the necessary test, in required period now it doesn't seem to that you have any thing related to
HIV, this test are closed nclusive and now u don't require to listen to anybody.
Relax and forget about it. Conc on your life and forget the past.it will take time for u mentally to eradicate this incident but work on it by doing exercise and yoga.
If you keep yourself indulging in such thoughts then definitely it will hamper your future so stop thinking about it.
Please feel free to contact me if you have any further doubts.