Is it possible to have a Herpes outbreak after never having one showing only IgG positive?

I have had these weird   long lesions on the pharynx,  as if there were several coalescent cold sores. No fever, no rash, nothing on the lips.. Nothing else. I had a year ago (although I don't know if it has always been there and I have not noticed) with fever (I think it was because of it). I was diagnosed with Herpangina. This year I noticed the lesions on my pharynx again by chance. I had no fever and was looking because I had a cold sore in the back of my mouth that was hurting a lot. The diagnose was again, Herpangina. The fact is that I have done IgG tests for citomegalovirus (positive), HSVI and II (positive), Epstein barr virus (negative) and Cocksackie A (negative). No IgMs for any of them.
I have been with the lesions on my throat for almost two months now. I was wondering if it can be HSV or something else. How can I have a more specific diagnosis? Clearly it was not Herpangina. Thanks.

[gracefromHHP]

you would need to get a lesion culture of fresh symptoms in order to confirm that these are herpes going on. seeing an ENT specialist at this point would probably be in your best interest.   It's unlikely that a herpes recurrence would last 2 months.  

I will gladly take a look at your herpes test results if you get the specific results to post here - e.g. hsv1 igg 7.6 and hsv2 igg .23 or whatever they are.

grace