Depending on what a person experiences and the seriousness of the experiences, it's possible a person would develop the ability to just numb out. It's a protective mechanism used when things get too overwhelming for the person. It helps a person survive! I have numbed out when feeling overloaded, and I'm glad I'm able to do that. It's far better to numb out than go ballistic. Again, who is normal anyway? Haven't met a normal person yet. You're doing fine and don't let anyone make you feel otherwise.