This is not a feature.
This is expressing reality to those who can relate.
To those who can't, I hope this sheds light so you can understand how it feels, not for pity, not for patronizing, but just so you know how people who go through this are not alone, though they feel they are.
It's a condition. It's a mental state, it's a conundrum, or whatever you may want to call it.
You can't tell who has it. It can be a friend, family, your siblings, who hides it perfectly in plain sight, but each time you're not with them, there's silent suffering.
This is an expression. This is not meant to help, heal or motivate, but to each one of you who feel the same, I hope we all make it.