Thanks for the replies, everyone. Like I said, for years I had no idea what this could be, until something in my mind made the connection and led me to begin researching a bit into it. I am afraid of researching this topic too deeply however, because I don't want to encourage it to keep happening and invite it even more in. I have come to realize that by just saying the words or commands to leave me alone have been working lately, which is great, but I still feel them trying. I have to be persistent in this fight. Eventually they will leave me alone altogether, I hope. It is so unnerving and eerie. I don't know how to express it.