I guarantee this has already been thought of but-
What if we're all in a coma living the lives we wish we had and everyone around us isn't actually real or at least how we know them isn't real. And every time you hear your ears ringing, you're about to die, but every time it stops, the doctors restart your heart. Or maybe you're about to wake up and they won't let you. That would explain ghosts. Its like little glimpses at those who've woken up. Or maybe they are just glimpses of what god(s) could be out there. But like what if we're all just seeing what we want or think we deserve and we don't have the same lives as we think we do. Like maybe we have a horrible family life in reality and just want things to be better, so we make that a reality subconsciously in our unconscious state because we want to spend as long as we can there. And then, what if someone is in a coma in this dreamlike place? Perhaps those are the people who woke up from this?
-However, this seriously scares me because if I am right which I highly doubt I am, I could wake up and realize none of this was real. None of it happened. None of the friendships. None of the adventures. Nothing. The only upside is that people possibly wouldn't have left either. But if it's all fake then that's upsetting, because I'm actually in a decent spot right now. I love my friends, I'm doing alright in school, and I am not going numb or breaking down in a heap in my room every day. So I'm actually somewhat happy. And if that's fake, whose to say I'll be happy when I wake up?Again. Probably not accurate. Probably lulling myself into a false insecurity. But I still feel like it's a valid fear