I've had both. For me, when I have had the external ones, they kind of freak me out. Often frighten me, like, hey, where did that come from??? Who was that?? I hate those. These, I know they are due to my illness, for some reason. Not sure why, I just do. At least, so far.

The internal ones are way, way more dangerous for me. These usually come as commands from God to do certain things. Won't get into it here. But, they're bad. Fortunately, I have only ever had these when I have been bad psychotic. They have caused me to do dangerous things in the past. Hope that never happens again!