So first, the IgM is never helpful. It's so unreliable that we can never know if it's accurate or not. Ignore that you had it done. Just ignore it and the results.
Your hsv1 IgG score is definitely an established infection. Since childhood? I don't know, but definitely for awhile. It takes time to get numbers that high. I'll give you some info on oral herpes at the end of this.
Now, for your hsv2 IgG. It is possible that this is a new infection. The minimum time to develop antibodies is 2 weeks. I tested positive at 2.5 weeks, though I didn't get an index value. (I didn't need it, either - I had a positive culture and a partner with hsv1 and hsv2, so I just needed to see which one I had.)
It could also be a false positive. Anything under a 3.5 needs to be confirmed. Getting oral hsv2 from giving oral sex is uncommon. It's not impossible, but it's not likely, especially if your partner didn't have any sores.
The Immunoblot isn't that reliable either.
So what now? Test with another IgG at 6 weeks, and again at 12 weeks.
If you got infected with something orally, your symptoms would be oral. You wouldn't have hot flashes on different parts of your body. That could be anxiety.
Viral shedding - or asymptomatic viral shedding - gives you no symptoms. You don't know when it happens. People with oral hsv1 shed, on average, about 25% of days a year. Shedding doesn't last the entire 24 hours, and most shedding episodes don't result in transmission.
Don't let this info panic you. Hsv1 is INCREDIBLY common. Globally, 67% of people under 50 have hsv1. As you get older, the numbers go up. Overall, probably 80% of the population has hsv1, hsv2 or both.
https://www.ashasexualhealth.org/oral-herpes/
https://www.who.int/news-room/fact-sheets/detail/herpes-simplex-virus