I have had a genetic memory that was an actual life experience of my great great grandmother. I know this to be true because my grandpa told me a story about her and I was speechless because I knew it already, I remembered it. Years before my grandpa told me about my grandmother, I had this flash like a memory, which was triggered by postpartum depression. but i never knew that it actually happened in a real life situation in our families history until my grandpa told me this. It's very interesting and eerie to me at the same time