Possible Ghost Attack?

Hey, I'm a bit freaked out about what's been happening at my boyfriend's place, and I'm really confused if my last experience was possibly just my imagination or an actual encounter with a spirit of some sort. First let me start off with a few things that I've heard about that has happened in the apartment building.

My boyfriend, Josh, has had quite a few experiences in his parent's apartment as well as in the building. I've heard from him and his friend Marcus about seeing a little girl bouncing a ball in the hallway of the 13th floor, only to throw the ball towards them and the ball and girl just disappear. Honestly, I'm kind of skeptical of this story just because of the typical "little girl bouncing ball" and 13th floor stuff.

Another occurrence happened to Josh's dad in the middle of the night. He woke up smelling sulfur. He opened his eyes to see fireworks going off in his room. By the way he described it; there were actual fireworks, smoke and all. When he closed his eyes and went under the covers, the sounds stopped and he opened his eyes again and everything was normal. A few other things have happened to various friends of ours in his apartment, but that's kind of irrelevant to my experiences so let me get on with the point.

This is how the room was arranged when the first three things happened:

The first thing I ever saw in his room was a shadow-like figure standing by his little brother's toy chest. We were lying down in his bed talking about something, with his back against the wall and I was facing him, my back to the rest of the room. In the corner of my eye I see a figure. Since he has a little brother, and the height seemed just about right, my first assumption was that it was his brother. I looked over, at the same time Josh looked over, and there was nothing there. I would've thought that this was my mind and the darkness playing tricks on me, because the light was out. But, there was some light. The bathroom door is always open, and the light is always on, and he doesn't have a door to his room... He puts a sheet up, but it's thin enough so that you can see through it into the hallway.

This leads to the second thing I experienced there. We were watching TV in his room one night and I look towards the doorway because I see somebody behind the curtain. We both stare for a minute, and I thought that maybe his dad was trying to get in... Then one side of the sheet was tugged by the "person," and when it fell there was nothing there. Not his dad, not even the shadow. It was just empty hallway.

Another time, I was there but didn't see it myself. Josh doesn't sleep well (living there, I can't blame him), and he was watching TV one night when I was asleep. He saw a person walk into the bathroom, and he heard the water turn on. He waited for a little bit because if it was his dad, the bathroom door would have been closed. After a few minutes of waiting and watching the hallway, he got up and went to the bathroom, only to find out that the water was on and nothing was in there. I wish he would have woken me up for this, but he says he didn't because I get freaked out really easily. He used to practice black magic, and he said he quit a while ago.

On to the main point... Like I said, he quit practicing black magic, and on Saturday he said he blessed his room so I don't have anything to worry about. He changed his room around, by the way, and this is what it looks like now:

Anyway, I decided to spend the night over at his house because it was raining and I didn't feel like driving home. Plus, he said that his room was safe, so I really wasn't worried. I remember exactly the time, because I was still freaked out despite his reassurances. I know that paranormal activity is more likely to happen around 3 am... I looked at my phone it read 2:48am. I told him to go to the kitchen and get some water before it turned to 3. I was teasing him just a little bit, making fun that his little spell wouldn't work. I guess that was a mistake on my part.

He went to get the water and we went to sleep. I was sleeping on the side of the bed close to the door, and I was facing the door. Josh was sleeping on the other side, facing my back. I had a really odd dream (which isn't relevant at all to anything paranormal) and I woke up. I was half-asleep, half-awake, I guess, and I opened my eyes and looked towards the doorway. Everything looked normal; the light from the bathroom was on, the curtain was up. I wasn't really looking for anything, just more of waking up and looking around like I usually do after weird dreams.

I closed my eyes again, and I got this really weird feeling that somebody just came into the room, so I open my eyes to look again. The instant I open my eyes, I feel an intense, pins-and-needles/slightly painful, electrifying feeling, and everything in the room is pitch black. It started at my toes, and it just washed upwards... It was really quick though, maybe in the matter of milliseconds. I had the feeling everywhere, but I know I could feel it surge up my body. I tried to move my feet first, and when I couldn't I tried to jump up, and I couldn't do that either. I tried to call out Josh's name, and nothing would come out. I couldn't talk, and then I tried to scream, and I couldn't do that. Then I noticed that I couldn't even breathe; it felt like something was on top of me, squeezing the air out of me and holding me down.

I was panicking, and after what felt like maybe 30 seconds I forced myself to calm down. I still don't know how I did it. As soon as I felt the feeling go away, it went as fast as it came, but this time down my body and "out" of my toes. I jumped up and started gasping for air. This woke up Josh, who jumped up and was ready to beat somebody up. After he realized that nothing was in the room, he asked what was wrong and eventually I told him. I feel like he didn't believe me; I don't even know if I believe it myself. I don't know if it was just a really real dream, or if it was paranormal.

Before this, Josh had had many experiences. It seems like where he goes weird things just happen. Most of my friends who hang out with him have at least one story of something creepy happening. Maybe it's because he practiced black magic? Or maybe it's because his best friend killed herself less than a month ago, and maybe she doesn't like me. He says that weird things stopped happening in his house, at least until I've been going there recently. He's not scared of spirits, and he's told me that if I'm scared then I'm more likely to be affected. Maybe that's why this happened to me, and not him?

I don't know. All I know is that I'm not going back there for a while.

If anybody has any feedback, it would be greatly appreciated...