You should talk to your T. Everyone has all the feelings/symptoms of most mental illness at some time; that doesn't mean one has that illness. That's how T's work, they can be empathetic because they too have "felt this way". We all get sad and anxious and avoid people at times, etc.

No one can diagnose one's self because it's not what we "feel" like that makes the determination but more what we "look" like to the outside world and how debilitating it is. If it doesn't feel very debilitating to you, you probably don't have APD. But your T will probably be glad to discuss with you what she sees.