Anyone have flashbacks like this,? maybe can explain this "phenomena", share stories..?

i experience the same thing. except i have(kind of always had) control over my mind. thus anything that is experienced is pleasant for me. i know this sounds odd and maybe even a little robotic but it is true. i have the worst memory ever, even when it comes to long term, but then there are time that i remember event from when i was a child like they are playing in my head on a hd projector. honestly i've never really figured out why my memory works the way it does but seeing as i don't depend on memory for psychological stability it never really mattered that much to me. when it comes to the brain you can find many answers in science but you will never find all the answers. the brain seems to be infinitely mysterious. psychology on the other hand is quite simple. but because of the human condition it has become normal and natural to be dysfunctional and broken. in my opinion you are disrupted by negative memories not because they are personal but because you have never resolved the cracks in your mind that allowed the such negative moments to effect you in the first place. i'm not saying you should have been born with a perfectly indestructible psyche but rather you should grow and learn from any and all experiences instead of just being broken by destructive thoughts over and over again. most people will say confront the memory in question to resolve it. and for the most part they are right. but the event only shine a light on a dysfunctional psyche that allowed said event to matter. example: if you imagine a kitten in a tree and then you pull the kitten out of the tree does this give you a sense of comfort or virtue. technically it shouldn't since it was just imagination. the same thing goes for negative thoughts. they only mean what you allow them to mean. in the end you dictate the value of everything you experience, whether it is physical or psychological. this may sound like a bad self help book but it is the truth. you are the key to your happiness. not how much money you have or what job you have or even your relationship with your family and friends. you are you regardless of everything and anything you can possibly experience in this world. your interactions are merely a way to express you mind in a physical fashion. true self is just a thought away yet last for an eternity. just for clarifiction, this is not a religious concept, it is truth of self.