I don't know, but I wouldn't be surprised if she did. Maybe her web comic is her way of coping with the betrayal. I'm just surprised that she doesn't have any (at least overt) angst towards how Andrias treated her.

I mean, she did undergo therapy after returning to Earth, as revealed in the journal..

Yeah if I went through that I'd be traumatized too

I would be pretty messed up if I was stabbed in the back (Both literally, and figuratively), killed, revived, (based on the scream probably painfully) possessed, and had to watch my body kick my friends' butts... So yeah, I think she does have PTSD.