Did you cut yourself, or did you find a sore that looked like a cut?
The IgM test is terribly unreliable and shouldn't be done on anyone except newborns. I'm including links at the end to explain why. You should at like you never had it.
I don't know what's causing your symptoms, especially what's happening under your eye brows, but it doesn't sound like herpes. Has your doctor seen that?
Since you are on the doxy, the white stuff on your tongue could be yeast, or thrush. It's not uncommon to get that while taking an antibiotic.
You don't mention any kind of sexual risk you might have for herpes, or how long ago your most recent exposure was.
Here are the links for the IgM test:
Also is it possible to get hiv from protected oral and protected sex of penis was shaved before encounter ?
Is it also possible to get hsv and get swabbed early on first break out along with cut ?
So many questions ....
Cruel world out here...