I have gotten 3 different types of voices.

The first I consider intrusive thoughts, which are not hallucinations, and sound like they are coming from inside my head. They are very much like thoughts that just pop up.

The second I believe are hallucinations; they sound like thoughts coming from my head, but they do not feel like thoughts.

The third, and I've only had a few of these, sound external. I consider them hallucinations.