I'm 23 years old. I'm a male. This has been going on for almost a year now. I realize I am getting no adrenaline rushes when I get excited, nervous, scared, etc. My heart doesn't race and I just don't get that "rush" anymore. I'm not getting the fight or flight response anymore. I have anxiety and I know what that feels like. 

However, my emotions have been kind of dulled.

What could be the problem?