This is a bit off topic for this forum, since oral herpes isn't an STD, and Dr. Hook and I don't follow the scientific literature on oral herpes as closely as for genital. I'll do the best I can, but you might consider seeing what Dr. Rockoff has to say on the MedHelp dermatology forum.
As a rule of thumb, recurrent HSV outbreaks always are in more or less the same location. Exceptions are uncommon with genital herpes, but they occur; I assume the it's the same for oral herpes, but I don't know for sure. Oral herpes outbreaks are more directly triggered by other infections than genital herpes -- hence the names "cold sore", "fever blister". In the context of another illness such as you describe, more frequent outbreaks and/or atypical locations might be more common than otherewise. But again, I have little direct experience with this. If the new/early outbreak is otherwise entirely typical compared with your past episodes, most likely it's herpes -- but if there is any doubt, you might need to see a health care provider (preferably a dermatologist) to be certain.
HSV certainly can be found in saliva of people with oral herpes at times when overt outbreaks aren't present. As the technology for detecting HSV improves, with PCR tests increasingly able to detect extremely minute amounts of virus, asymptomatic viral shedding has been found to be more common than previously believed. Still, the amount of virus 7 weeks after an outbreak (or at any other time when there are not symptoms) probably is minute and likely not enough for easy transmission. The standard advice for many years is that people with oral herpes should avoid kissing or oral sex from the first sign of an outbreak (e.g. the first tingle or skin bump) until healing is complete. To my knowledge, the newer knowledge about asymptomatic viral shedding doesn't change that advice.
I hope this helps. Best wishes-- HHH, MD
Dr. Handsfield,
Thank you, I believe that this is all the reassurance I need but will consider consulting Dr. Rockoff if any unease persists on my part.
Thank you for your time and effort