Writing?

I have been doing a lot of writing. Thinking about writing and looking at others who have novels, blogs and make a living at writing.

Just wondering if I am a writer. I find myself throughout the day wandering in a narrative. I hear it in my head. I've never heard voices in my head other than my own and they are usually what I would write if I could sit down that moment and write it. 

I am wondering if that is my authentic self? If there was no interruption between my thoughts in my head and the thoughts that make it to the page. 

Hopefully one day my focus can go outward beyond my own navel.