Ok so, this is not the usual "i hear things" stuff, or maybe it is.
Knowing that i'm not talking with anyone, sometimes i get myself acting or talking with people that isn't there. Sometimes is related to real life past conversations, most of time i start reviewing what we said, repeating what i said and sometimes saying things that i've though in the moment. The weird thing is that sometimes i don't "start" this conversations, sometimes they just come and i answer.
This just happen when i'm alone.
BTW i'm not worried about this. i'm asking just beacuse i'm curious if this happen to someone else.
I talk to things all the time. And I suppose you could say I am talking to myself, but I direct it at actual inanimate objects/animals/whatever. For example, I actually talk to the wind as well. On walks, when it blows particularly hard, I strike up a conversation about whatever is on my mind. I KNOW that it doesn't talk back; this isn't a hallucinatory thing. I also talk to trees, cats, etc., or just into the air.
And when you say that they simply come and you answer... well, I don't know exactly what you mean, but I do know that sometimes I randomly answer a question that just presents itself to me out of nowhere. Usually this is about something that's been on my mind, but it can be random.
I don't think this implies any level of craziness. It is just voicing random thoughts instead of keeping them in your head.
Admittedly, I don't know if my experience is very close to yours. But I would have to say that what you are describing doesn't sound very odd to me at all, especially because you acknowledge it and know it's going on.
But if somebody hears you the police might give you a 302 commitment!
then comes the "oh shi..." moment
A lot of people talk to their flowers/plants and the ones that have been talked to have been proven to grow better!
Wow the wind, that's sooo cool, I might give it a go myself :)