Crazer, I find what you said very interesting and can somehow relate. I remember before i was born, kinda weird but I do. All I remember is darkness. No thoughts either, just pure darkness.
Also, when I was younger(probably 6) I would sometimes sob uncontrollably. I was always alone in my bed about to go to sleep. I would randomly cry and stress about life and repeatedly ask myself what is my purpose in life, wonder what life is, and wonder why i was here. I have always thought that I am thinking things that I should not for my age.
Maybe my experiences are normal. I am not sure, i never talk to anyone about these things.