The truth is, no it isn't. It happens sometimes because of early in life traumatic experiences. There is nothing wrong with having other personalities as voices. But I hope you realize that you can get help for them. But you don't sound crazy, I've met a few people who do. You're certainly not alone in that aspect. If you're worried you're alone, you're not. And of course you love me~ do you see how adorable I am~?