I moved to Brisbane about 6 months ago, into a fairly modern looking townhouse.
At first nothing out of the ordinary happend. And then the doors started slamming upstairs and downstairs, sometimes all at the same time.
I'd check all the windows and doors for a breeze but there was none.
Sometimes there was actually no doors or Windows open.
This occurrence didn't bother me to much as it could be dismissed. What was freaky was when the door would slowly close, latch clicking and all. And then it would 'click' and open again slowly.
Another time I was laying in bed with my boyfriend play fighting, I slapped his leg and it made a very crisp slap sound and about 5 seconds later the exact sound echoed back.
Both of us looked a bit stunned as it came from inside the room and nothing had fallen.
I would also see in my bedroom at times this weird red mist stuff.
I didn't think too much of it and just either left the room or closed my eyes if I was in bed.
I only ever saw it in our bedroom.
I have had many experiences with paranormal and just decided to accept it.
Now the reason I am writing this story is because last night I had my bedroom door open (not something I ever usually do).
I was laying in bed all lights off when I heard my stairs creaking like someone was walking up.
I had my phone in hand and took a picture of my door way.
It's very faint but to me it looks like an outline of a person in my door way.
Would like some feed back in what other people think of this.
I am perfectly fine with being disproved and maybe someone will be able to tell me if it's possibly just my mind seeing what it believes it to be.
From my perspective it looks like an old man with a bald head and he's wearing a robe.
Since you said this happens a lot, set up a camera on your doors and upload it so we can see them opening and closing by themselves - that would be more helpful than a blurry picture!