Presence In My Apartment?

I've lived in this apartment complex for over 2 years. The first apartment I lived in with my husband, and I'd sleep at the edge of the bed instead of against the wall. I'd always feel really weird about turning my back to the edge of the bed, like there was something behind me, and there were a couple of nights that I actually felt the presence.

They'd be generally the same, I'd fall asleep but it'd be my room, exactly the way that it is when I looked at it before I drifted off. I'd then feel this dark, evil presence behind me, engulfing me from behind...I'd never see his face, but I knew it was male, because he would growl in this really low voice... It was almost as if I could feel him smiling because he knew he was terrifying me. I woke up to see nothing there, but I still felt uneasy, like the presence was there but I couldn't see it. I switched sides with my husband and I was able to fall asleep with the wall against my back.

One night, since it happened so often I tried to turn around and look at the face of the person, but it felt like it was pushing against me to prevent me from doing it! I turned all the way around, but the black that I saw/was turning into vanished.

Since switching to sleeping against the wall, I haven't had those kinds of experiences anymore. I've always wondered if it followed me though, because we moved into another apt at the same complex and I always feel that something might be watching me when I'm alone.

This morning I was irritated at my cat for meowing like crazy in the mornings like she always does (I think she does it to annoy me, because in the afternoons and evenings, or even all day during the week she doesn't meow at me at all), and as I walked away from her muttering that I hated her, I walked past the closet door which started shaking from side to side, even though I hadn't touched it at all! It just kept shaking without showing signs of stopping, so I reached out my hand to stop it and it did. After a few seconds of staring at it my heart started to beat really hard, and I thought maybe it was the presence that it was still following me...

Don't know what to make of all of this, but I've had intermittent experiences like this since I was a teenager. I've always had this certainty in the back of my mind that if I wanted to, and actually opened myself up to it, I could see and talk to spirits. I've never done it though, I'm far too scared.