I'm having a hard time wording any of this, so I apologize if this is rambly, badly titled, and especially if it's not qualifying quality
Most people occasionally talk to themselves, I'm sure, and I've seen cases on reddit where people develop different personalities to talk to (tulpas mainly). But what I'm talking about doesn't feel like the same thing as that. I remember reading this article in school about this debate in psychology, it was suggested that what we consider us, isn't the only one there. There's this instinctual 'black box' thing there that also has a say in the matter, but we never know its there (unless things go wrong)
Then I found out about when some patients are given a corpus callosotomy (that thing where they cut the wire between the two halves of the brain) they begin to exhibit some strange behaviors that are completely out of their control. But that isn't even the whole story because technically all they lost was the ability to rationalize what their "alien hand" was doing. If the hemispheres weren't split, they'd have still moved their hand but they would know exactly why, and wouldn't be freaked out by it.
Long story short, I grew up with the impression that "me" is some wacky tag team of consciousness. Whenever I remember something out of the blue, or whenever I improvise some answer in college, or even when I notice myself eyeing up the fridge more than usual; I'll actually 'have a little chat' with myself in my head. Sometimes it's pure amazement and praise, other times its reminders to be disciplined. Nothing is ever said back, obviously, I'd be worried something was.
I'm not even sure why I made this post. I suppose I'm just curious if any of this had the potential to backfire (negative feedback loop) or be a harmful way of thinking, as well as hear your thoughts on subconsciousness.