"Old Pain"

I'm not sure if I'd really consider this a toxic trait. I just think it means I haven't completely moved on from some of the events that happened in my life. I know forgiving/forgetting are healthy things, but sometimes by doing that it doesn't do the crime justice. Maybe it's good to feel pain with some memories, as it reminds me that I should never trust blindly. Kind of like a safeguard. I really don't know what is the right and wrong thing to feel when looking back at painful memories, but somehow I still can't see it as toxic.