That's good to hear about your therapist. I'm glad to hear that you're in good care.

Unlike most aspies, I sort of have the opposite problem as you. I feel things very strongly, my emotions and thoughts hijack my mind. However, perhaps you should talk about how you can't give words to your feelings. That's definitely something you can bring up, and a point you should make clear. Tell her that you need help identifying your emotions, so that you can better describe them and she can give you the proper care you need. I imagine you aren't feeling very happy because of these occurrences, so you can eliminate that option off the list. There are plenty of kinds of crappy - angry, sad, disappointed, maybe a couple at the same time. Confused is a valid one too.

Also bring up how the flashbacks interfere with your normal hobbies and / or passions. That's a very telling sign that your mental troubles are affecting your life. I hope that you make the connection in communicating with your therapist, and in doing so, make a breakthrough in your own recovery.