Well, I’m not one to believe in ghosts either but this has happened to me as well, but I was grateful, since I was praying the Rosary alone.

It sounded like a voice within or at least close by , but doubling my own. I took it for an Angel close by , so I welcome it

I had another experience when I started to visit the Blessed Sacrament regularly a few months ago. Well I would go in the church where the Sacrament would be and I would kneel, not long after that women would be crying. This happened three separate times ( at three different churches. The woman would be close by, always directly behind or next to me …not whimpering , more like loud crying… it was strange since noone approached them or even noticed them. I thought to approach them but since they were in the right place for crying and already praying, I thought there was nothing else I could offer except a charitable prayer and a God blessing under my breath and also because I didn’t want to distract them as they were intensely in focus towards God. My mother cries while she prays most of the time, so I didn’t think anything of it.
I also had visions of “lost souls in hell” while I’m alone in prayer at night asking me to pray for them…but I read that you’re not supposed to do that…right? Since you would be inviting them into your house? But it was probably my imagination?
I say there’s nothing wrong with the extra voice either as they are praying the Rosary though

Thanks for sharing!