Yes, its possible for shingles to show up like that. The new viral PCR tests we use test for the herpes simplex virus (HSV) as well as Varicella-Zoster virus (VZV).
When VZV is on the genitals it would look the same as a HSV outbreak. The only way to tell the difference is by doing the swab.
I don’t know your complete medical/sexual history, but with what you have described I would have no reason to think you have HSV-2. The swab test you have done shows it found VZV which is the chickenpox virus and it is common for this virus to reactivate and develop as shingles anywhere on the body. We see situations like you have described at our STI clinic were people believe they are having a HSV outbreak but it turns out to be shingles.
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