Steven Brust nails what it feels like after you send a book in to your editor:
It has now been over an hour since I sent my [email/query/story submission/250 thousand word novel] and I have heard nothing. Nothing. I now understand Lee’s frustration at Gettysburg when Stuart didn’t show up. Has there been a fire? Has someone died? If so, I’d think you could at least drop me a note explaining the delay. It is almost as if there are things you do that don’t involve me. In fact, I could almost believe that I am not the most important person in the world to you. No, I don’t accuse you of that; but can you see how you might be giving that impression?
Have you considered what would happen if everyone behaved the way you are? I would have to learn deferred gratification. And, as you know, deferred gratification is a slippery slope that can lead to me not getting everything I want.