Usually IgM results are presented as a numeric value, I see that yours is not.
Again, continuous symptoms are not usually indicative of herpes. I'm not clear how the Valtrex is helping if you don't have herpes, though. It does seem to me that if you had herpes, at some point you would have lesions.
A small dose? I'm not sure how you are defining that, but suppressive therapy, medicine taken every day, can definitely postpone antibody development.