Could someone explain depersonalization? I’ve seen it a lot recently on this forum. Thank you :)

does anyone else get INTENSE derealization (it’s the worse for me when i wake up from a dream in the middle of the night) and it’s so bad that it genuinely feels like nothing is real, not even thoughts are real, consciousness is not real, what the heck are we doing on a floating ball in the middle of darkness?? i feel like im in a simulation or a dream. i hate it sm ive had it everyday for 5 years, but tbh im not surprised it hasn’t gotten better because I have gone through some traumatic things recently and have had bad mental health. hopefully it could get better soon idk.

I read a lot of other people’s posts where they deal with intrusive feelings, and sometimes even emotions? Would anyone care to further explain so i can understand this better? it would be very much appreciated.

I have read many people use the word theme in their posts. I think I know what that means as far as OCD goes but could someone please confirm me??? Thanks!