Yes.

When I was awake for way too long my inner voice was louder than usual, a sign that you need sleep for sure.

Yes. Unless I’m reading something, it’s always calm and reassuring.

Not always. Sometimes the voice is different or louder.

There is no voice in my head. Probably since I have my music on quite often in my head.

...woah

I think the voice I sometimes hear when reading is quieter than the voices of the vocalists of songs that are stuck in my head.

Too many to tell, they often talk over eachother like a crowded subway 😁

No

I don't have a voice in my head, except when I'm reading...sorta. Though sometimes I try to suppress it and read directly because it seems neurotic to read through an inner voice and I used to not have to and I read faster that way.