I have no idea and I haven't quite understood it from Wiki (though I haven't read it properly, either). I kind of get the concept, but not how it actually manifests itself.

Sometimes I get this a second or two long feeling that things are not right. Like I know my son is real and I am real and everything is real, but the situation is wrong. I moved at the end of last month and I got this feeling yesterday. I stood up from my bed and felt that this whole situation is wrong. I'm not supposed to live in this appartment, I'm not supposed to be here, I'm supposed to be with my ex in our old home (from spring 2014) and this is not my life. This moment took less than five seconds and then it faded. So, are these kind of emotions very mild dissosiation? For those seconds they feel very real and the feeling after them is not pleasant. 