I noticed that most of the time weirdness of anything that one might be perceiving/being aware of is strongly related to feeling fear and seeing the phenomenon as unknown/weird, whatever is weird is only weird because it is not common/known to you at the moment, being in a situation in which you can't wrap your mind around everything you experience can be frightening. A few years ago I came to a conclusion that all the religion stuff, gods, eternal life as presented in so called holy books is a scam, it took me a while to fully integrate with this "knowledge" or awareness of that, with this came decreased fear of death, you know, on one hand it is perfectly normal to die at some point in your life as everybody do. So how is this anything unknown/weird (as soon as you realize there is no logic reason to believe you continue to live after you die)? So I began to feel comfortable with the thought that I will die one day and my consciousness and my memory will vanish. On the other hand there is something weirdly frightening about dying when you know nobody cares about you, when you're not the most important person for anyone, at the same time dying doesn't seem as frightening, even if you're physically alone at the very moment of your death, once you've been loved. What I mean by this is that religion as a way of manipulation deals with some basic needs of every being and plays with them to make an individual submissive to the "system" (= whatever is governing the way our every day life as in culture, habits, manners, what is seen as normal and not normal by a society etc., with the way not being natural if only every individual wasn't influenced by the system). Depersonalization and derealization, not provoked by dissociatives or psychedelics, are manifestations of negating the reality you find yourself in, of not wanting it to be like it really is. I've experienced deep dissociative episode after quitting benzodiazepines and it was indeed frightening, one thing is the cause was biochemical (but how? what is the mechanism?), the other thing when I stopped taking them, I suddenly started perceiving and feeling everything much stronger, all the stuff that I managed to deny and hide deep inside myself years ago started popping out and it was way too stressful to take at once, hence dissociation from the present moment, from the reality I found myself in.
Weird stuff this is and I continue experiencing it even though it's not as intense, it's as if I was about to find about something I need to know to survive, but don't want to know to avoid stress.