If you identify that strongly you probably do have depression. I would strongly urge you to give cbt a try. It has been a Godsend for me. Reemember you can get better but you need to take action
to all who didn't cry during something Traumatic:
that is completely normal, with or without depression. when something traumatic happens your subconscious tries to tell your conscious brain that it didn't happen, you go into denial, like a mother hiding a child from the harsh reality.