CPTSD for sure.

After years of that, you're hardwired to respond in a certain way. It potentially borders on compulsion to do so. The brain travels the paths that it travels the most- like game trails getting worn in the woods. That's how CBT works, by forging new trails (through practice) that become the new go-to trails for your brain.

As someone who's navigated a pretty severe anxiety disorder, here's something a lot of people don't want to acknowledge:

Anxiety is normal. There's no such thing as life without anxiety. It's part of life.

Anxiety becomes a problem when it inhibits your ability to stay functional.

When you can see the root cause of anxiety, it's an early warning system. It's telling you something. Perhaps that you need to do something differently? You may not know how to interact with her if you encounter her. That could be scary given that she's unpredictable and had controlled the situation for so long. Do you know the four F's? Fight, flight, fawn, and freeze? These are common ways to respond with CPTSD. You can work on avoiding these responses.

You're already healing though, and eskielover is right- once you're tested in a situation, and respond differently than you feared you would-- once you pass the test-- you'll lose a lot of your fearful feelings