I think that happens for most people,with or without any kind of dissociative disorder.

Everyone judges others and the world according to their own perceptions.It happens all the time and why many arguments happen here at PC,if you have noticed.It also happens all the time in real life too.

I'm always thinking people are upset,sad,whatever,when they aren't.People think the same of me,assuming I'm snobby because I'm very quiet,assuming I'm mad when really I'm tired or hungry,etc.

It's not just you or anything you should worry about I don't think.