PTSD, I know sometimes its easier said than done, but if you still feel like this has to be resolved then I really think you should bring it up. Whatever you're feelings are towards you're T from that session, just keep in mind that telling her is not anything she has not heard before by someone at some point. Everything you feel is valid because its what you feel and she or anyone else for that fact cannot judge it. You're feelings are you're feelings and you are entitled to them and sharing them.

I hope you find resolve with this soon. Hugs.