I've been googling and trying to look up "knocking on the door and no one there" and came to this web site. I've found many interesting reads here. I would like to add my own personal experience. Usually my troubles come when I am sleeping and always at 3:00 am. There used to be a dark silhouette of a man standing at the foot of my bed and letting out a terrible holler so terrifying it woke me up and I would be in a panic attack. I would also get a knocking at the front door at 3:00 am (again would wake me up) and I would go to see who was at the door and no one was ever there. I moved last April and didn't have anything happen until around November. Every once in awhile I hear that knock at the front door. When I first heard it I was afraid I'd get that figure at the bottom of my bed again but I have heard the knocking several times and the figure has not returned.
Last night it happened again at the same time - 3:00 am. I went and looked but no one was there. I don't understand what I'm experiencing and I'm wondering if it is a good spirit at the door trying to warn me about something or if it is a bad spirit trying to get me. I've been told it could be attributed to PTSD but I have had no reason in the past year to have anything reactivate that. Also, when I'm sleeping sometimes I feel like I'm being pressed hard into my bed and sometimes I feel like I have a ghost in my body and all I'm doing is projectile non-stop vomiting. And of course when I wake up I'm panicking. I guess that has happened only once since I moved.
Just curious what your thoughts about this are. Thanks.