Someone who deleted their account before I could reach out to them wrote this about those feeligns and I could relate really strongly, take note that they are not my own words:
You know when someone asks you what would a friend say about you, or what do you think are your five most defining traits? Yeah, I have no clue. It's not humility, I just really can't answer it because when I look inside myself I see absolutely nothing.
Another common thing is experiencing very little when not around others. When left alone I rarely have any desires, wants, etc, beyond sensations of hunger and other such things. The moment I speak to anyone I'll adopt opinions based on what they're talking about, and my emotions will come surging back.
The stillness and hollowness are probably the most profound things, though. There's just nothing there. It hurts because I know there should be something there, but there's just not. No desires, no wants, no purpose, no defined anything where a person should be. Other people sorta fill in those gaping holes with their presence, but it lasts only for as long as they are near.
What do you want from life? I don't know. How can we help you? I don't know. What are your plans for the day? I don't know.
Things unfold and I react, but there's no rhyme or reason to any of it. I just exist.
Seemingly strongly held beliefs and opinions can and will change for no real reason too. How I view others, how I see the world, right and wrong - it's all just constantly fading in and out of reality.
I find it so hard to describe. I know it hurts, though. it hurts because the switch from feeling something, anything, to feeling nothing at all can happen so quickly. It hurts because I know I can feel, I do so when speaking to others, when I'm around them, but then when without them it's as if I just cease to exist and all those things I told the other person I like, dislike, etc, are no longer true at all and that person I claimed to be dies.