Before I started trauma work with my therapist I was also experiencing this,
I had very intense flashbacks with horrible body memories that made me feel honestly like I was being attacked right that very second,
I couldn't explain it because I couldn't remember being abused like that

As it turns out, my therapist explained to me that sometimes when someone is abused they avoid all triggers and they end up becoming numb to the memories and they end up getting buried, sometimes to the point of being recovered and sometimes they manifest in flashbacks, nightmares and body memories

So when I recovered some of the memories it helped me a little to know my triggers and know What I can and can't handle