The ONLY tests you should trust for a conclusive diagnosis of Herpes is the IgG tests. There's one for each kind of Herpes (i.e., HSV1 and HSV2). The IgM is not a reliable test.
IgM tests are notoriously inaccurate. Since it sounds like a bit more than 2 months have passed, I'd wait another month and take a type specific IgG test to sort things out.
And your symptoms sound nothing like herpes, so my guess is the IgG will come back negative.