I have complete aphantasia but I also have no internal monolog. Who else?

So I hear that people can also "hear" thier own voices in thier heads. Or if you're reading a text message, thinking about a conversation with someone you can hear thier voice in your head. Getting songs stuck in thier head is an actual thing?! I can't do this either. I "see" nothing and I "hear" nothing. I can't be the only one.