Sorry to hear about the sexual abuse.
I wanted to reply because I to experience these weird flash backs. I was never molested.....well at least from what I can remember. But I have these strange things happen to me.
What mine are like (and I've been having them since I was 13), is when I'm in the shower, I get real dizzy, then memories that I haven't thought of in years reoccur. Then my body feels like it's on fire, and I throw up.
They used to be very bad, to where I had to lie down. There not as bad anymore, and I can control them much better now.
I asked my T, when I was 16 about them and she said that they could be repressed memories I won't allow myself to remember. Repressing memories is a mechanism the mind uses, so it don't hurt to much.
Another mechanism sexually abused people do is gain alot of weight. Thier not aware that they gained weight to become unattractive, but they did unconsciencly. That way the person who abused them will not be attracted to them anymore.
But I'm not a psychologist. I'm just a kid who experienced the same sort of "stuff".
I'd talk to your T about this, because the sooner your able to figure them out, the sooner you can control them.
I hope it all works out for you.
Desirae