We lived in a small house in central Illinois that was not too old. About 50 years old. We have heard, sensed, seen and felt a variety of spirit or ghost energies. One specifically comes to mind as most strange.
My husband and I had gone to bed around 2am. A short while later I awoke with the call of nature. I got up, threw a robe on and opened my bedroom door. What appeared to be my 9 year old son passed soundlessly in front of me.
I asked him if he could wait a minute as I really needed to use the restroom. He didn't respond. I asked a few more times. He still didn't respond. I reached my hand out to touch his shoulder and couldn't quite reach him.
We walked through our living room and as he neared the kitchen, the fridge being just to the left of him, he turned and looked at me. However the "thing" had no eyes. Just black empty sockets where his soft blue eyes should have been. (I didn't realize what I had experienced until the next day.)
I continued following around the fridge and in to our very small bathroom. No one was in there. The room was ice cold. I attended my needs, but began hearing a strange mumbled-growl sound coming from my kitchen.
I hurried back to bed and fell asleep quickly. The next morning when I shared the story with my husband I recalled that the 75 gallon fish tank that was in our living room was not lit. We always kept it lit for our kids to see to the restroom. Also the water was very murky.
We have heard people explain that spirits or ghosts can draw energy from lights and murky or dirty water. We and several others believe that this may have been an energy called a Doppelganger. Which a Doppelganger is a spirit, ghost or energy that can copy nearly all of another energies features. Usually a Doppelganger cannot copy the facial features or appearance of the other energy.