Is this part of my anxiety?

I had recently (two weeks ago) been diagnosed with anxiety after knowing for years that I've had it. I've been able to get on medication and all is going well so far. However, there's one thing about me that still puzzles me and I'm curious to know if anyone else feels this way or just knows what it is.

If I'm reading a book, watching a movie or watching a TV show for a longer (over an hour) period of time, I tend to feel...odd. I end up feeling disconnected with reality and feel more like I'm in the reality of that book/movie/show. But not exactly. It's quite hard to explain the feeling. But the same thing happens sometimes if I'm going out somewhere. And it definitely always happens when facing newer or unfamiliar situations, like vacations or being in an unfamiliar house. I just feel disconnected. As if it's more of a dream than reality. One cause may be the fact that I don't get out too much, due to my social anxiety as well. But that wouldn't explain what happens when it comes to the movies and books and all of that.

I've looked up depersonalization and derealization and they do seem...sort of similar but not exactly. All I know is that I started feeling this way shortly after my anxiety has started those few years ago. Does anyone know what this may be and if it is connected to anxiety?

Thank you!

It used to happen to me too. I managed to get some sense of control over the feeling of "detachment" by regularly practicing meditation. It allowed me to get in touch with the moment, the present and not wander to frequently outside the world we're living in. I'd encourage you to try it. If you don't know how to approach the practice, here's a quick and easy guide: *mod edit*