i think your theory is an interesting one, and it certainly seems logical to me and maybe i think you are right there are some memories we are born with, be they good or bad. but to say all deep seeded issues stem from nine months of pregnancy and chemical in balance is pushing it and highly unlikely.you have a point, but as an example my mother is a narcissist ,angry ,cold and evil and i am the opposite.
nice theory though.
eventually life is about learnt behavior , environment and choices, we are born and we start to make those choices.
for a time we can to a certain extent blame our parents for certain experiences/things that happen to us.
but then we get to a certain age we have to take responsibility for our own actions and our choices and our own happiness.
thank you for posting this it made me think. hope you have a great day and welcome to the site i am new here as well.
take care