Ok, that's fine. Yes herpes is one of the things we think about when there is a small sore in the genital area. HSV doesn't always come in clusters. It's often just a very small sore spot that comes and goes. Most people who have herpes don't even realize it the symptoms they can be so minor, like a little scratch.
Even though you've not had sex in 3 months, it's still possible. It may be a recurrence from a previous exposure more than 3 months ago. Many many people are not even aware of EVER having a primary outbreak. Sometimes we diagnose the presence of herpes only by evidence of an immune system reaction in the blood. The person just NEVER has a recollection of ever having an outbreak. It's also possible to transmit oral herpes (type 1), from the mouth to the genitals. This is most commonly done by using spit for masturbation. About 50% of people show blood evidence of having had herpes type 1 by the time they are 20 years old.
The next best step to figuring this out if on exam your gynecologist can't tell, is to have herpes blood titers drawn. The proper test is "HSV IgG Type specific titers". That will show if you have evidence in your blood of having been exposed to HSV type 1 (oral) or 2 (genital type).
Sometimes a change in diet can cause previously hidden herpes to come out. The most common food culprit is almonds (or other nuts) and oatmeal. The list of possible food triggers is easy to find on-line. It's foods that are high in the amino acid arginine.
Taking the amino acid supplement lysine can counteract herpes outbreaks.
I hope this information was reassuring and helpful. Anything I can clarify?