So first question - why do you keep seeing escorts if it's causing so much anxiety? It hardly seems worth it. Any person, escort or not, with an agency or not, can have an STD.
I'm not an escort, never have been, and I have herpes. I got it from someone I was in a long-term, serious relationship with.
So she didn't give you any oral without the condom? You just showered together? There's no risk from this at all.
Have you gotten your HIV test yet? :)