what she is referring to is the 3 month window from the time of exposure until the time of testing to be considered conclusive. back 11 years ago, the recommondations were different then today, as some the tests were fairly new and they wanted you to wait longer to err on the side of caution.today with being able to study the tests and results they have figured out alot better how they work and the time needed to be effective.
as for the original poster, yes, it has been recorded that someone has gone over ten years without showing symptoms,the thing is,that it is extremely very rare for this to happen. i highly doubt that this would be the case with you. so for the most part, it is another overhyped thing that you will read somewhere on the internet.
good luck