I'm not sure if it falls into AvPD. If I'm supposed to meet someone (especially someone new), I keep thinking about it relentlessly and keep staging an artificial conversation with that person in my mind. It continues until I meet the person in reality. And whwnever I have a conversation with any acquqintance, no matter how short and simple the conversation is, I keep thinking about it for several hours after it. And I can't stop it.

Is this falls into any specific type of disorder? Anybody else face this problem?