Hello Brian, my short answer would be to say that yes, this is normal, and it can be for a number of reasons. One reason can be the realization that your childhood was not quite as you thought it was. That can trigger a grieving process, a sense of loss, of confusion. It can also trigger doubt and confusion about who you really are - identity. Another is that inevitably when you start connecting with past trauma you were not consciously aware of, you also start stirring up feelings you had pushed out of your conscious awareness. Sometimes the feelings you have about remembering trauma are actually feelings you had at the time and pushed away or disconnected from in order to cope. In this way, feelings can actually constitute memories; memories exist in all the senses, not only in thoughts.