That sounds like a pretty good indicator to me that you do have some sort of paranormal activity in your house. I have seen spirits my whole life and I would suggest talking to them out loud, just like you would a human. Ask who they are, what they want, etc. You should use a tape recorder while doing this in case you don't hear a response with your own ears, you may pick up an EVP (electronic voice phenomenon). If it really bothers you, you can ask them to leave, sometimes they will if you ask.

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