Of course I forgot to put some things into my latest account. So here goes, it won't be anywhere near as long.
I didn't only see black shadows at my feet, but I saw them on a fairly regular basis, everywhere in the apartment, all sizes. I never felt fear when I saw them, though.
The next two happened within short time of each other, so I don't know if they were connected somehow, or if... You know... I'm mad;)
One night I had gone to bed, drifting in and out between the stages of sleeping and being awake, I heard steps coming up the stairs (not unusual, since I had a neighbour), but I never heard my neighbour's door open or close; instead it sounded like the steps stopped right outside my door, as if someone/something was waiting for me to come out. I'm aware that I might have been in a dream state, but the feeling was so intense and scary (especially in light of the happenings in my other story) that it lingered until morning, and even as I left for work, I was surprised to not find somebody stand outside the door, waiting.
Another evening I'd just turned off the light and lay my head on the pillow, when suddenly I felt like someone was standing in the doorway (I slept with my back to the door to the bedroom) just looking at me, I sensed it as a tall, black shadow leaning against the doorframe. I was scared to death to turn around and look, but eventually I did - and nothing was there, again, much to my surprise.
I realize that both of those occurences could be my imagination, but I hardly doubt it, when I think about all the other stuff that happened in that apartment.