I have been through many places. I have gone through a lot in my life. I've always seen shadows darting out of my vision, out of the corner of my eyes. My girlfriend (As of 5/25/2015, still dating her for 2 months and 4 days.) even notices them around me. She normally doesn't see them in her house. But in my room specifically at my house, she constantly sees them. Anywhere I am, she sees them, even her room when I go there. They have always been around me, even when I was younger.
They literally follow me everywhere. There are some that have stopped darting out of my vision by now, and just sit still in one section of the room. One stands by my bed, one in the corner by the closet. Those ones are just there. They don't bother dodging my sight anymore.
Also, I seem to have an effect on electronics. When I walk into rooms the lights flicker. This happens all the time for me, but people have been pointing it out recently. I can also be in a bad mood in my room and the light will go out completely, or be in a good mood and the light will get brighter. (I have a dimmer on my light, but that's with me being across the room from the knob that controls it, it has minimum and maximum settings...) I've also been lazy and looked at the light and thought *I want it darker in here* and watched as it got darker without anyone being on the same floor as me for all of these.
I've had a strong feeling of my grandfather manipulating the lights in my room to match my mood quite frequently. My grandfather passed away years ago, though I do have sudden remembrances of him. A scent, a feel that I would get around him, stuff like that.
For the shadow people, my girlfriend and I were laying in bed having a conversation, then she asked me about it. For the lights, they even flickered at Comicon in Denver on Saturday (5/23/2015). They even flickered most of the year when I went to school, at times fully cutting out in the entire room, and only the room I'm in.