I have never seen an indeterminate result become a positive one. I had one patient who had done a western blot (not through me) who had an indeterminate and then a positive blot. She asked me to have UW look at the blots again. They determined that the first one was a very close presentation but should probably have been called positive the first time around. That is the only case I have ever seen where it went from indeterminate to positive, but not really, as it turns out.
As you may know the western blot picks up 95% of HSV 1 infections and 99.9% of HSV 2 infections, so it does miss a few HSV 1 infections. Nothing is perfect here.
If I were you, I would probably believe that with a high degree of certainty, I didn’t have HSV 1 infection.