Are you saying that you’ve had two or three sex partners in your lifetime? Although that technically doesn’t put you at high risk of having herpes, if one of them was infected, it certainly could be correct. You are over the number (3.5) that we generally consider the upper limit for likely false positive, but I have had two people with an index value over 4.0 in the past year that did not confirm by western blot.
My impression is that you would likely confirm by western blot but possibly not. If you want to get one to be absolutely certain, I don’t think it’s a bad idea.
The risk of infecting someone else assuming no sex during outbreaks, assuming you’ve disclosed the information to a partner,assuming sex about twice per week, assuming daily therapy on your part and no regular condom use by your partner, the risk of infecting someone else is about 2% per year.
Do you know if either of your previous partners has been tested for HSV 2?