Any Explanation?

The Story about to be told is not in the exact words it was spoken. NOTICE: I am Extremely Young and don't know what could have caused the strange event, and the weird feelings. Do not judge me harshly. I am just seeking Answers. Here goes nothing;

I was in the living room, Playing Xbox Live Connect, When I Heard What sounded like water running from the bathroom sink. My Cousin had just gotten out the bathroom so I assumed he, accidently, left the water running.

"Colin!" I yelled.

"What Now?" He said as he walked over to me. (Coming from the kitchen)

"You Left the water running," I explained.

"What Water?" He said, looking innocent.

"The Sink, in the Bathroom? Its Running, I hear it," I said.

"Oh. Uhm, I'll get it then," He said moving in that direction.

I watched him for a few seconds then continued playing the game.

"You know what the weird thing is?" Colin Said.

I hadn't notice he walked up so this startled me.

"Uhm, What?"

"I didn't even use the sink when I was in the bathroom. I let the cat out, because it was locked in there." He said, looking toward the bathroom.

"Locked? How could it be locked? It Doesn't Lock," I said, looking at the bathroom door, "You Sure it was locked?"

"It Wouldn't Open. I walked in here, got a screw driver, walked back to the door, tried opening it again, it wouldn't open, so I took off the screws, got the cat out, then put the screws back in."

"That's Weird."

I then got up, walked to the door, inspected it, then noticed 3 Diagonal scratches on the outer part of the door, a little above my head. Too high for the cat to reach, too high for Colin to reach, Too High for Me to reach. This creeped me out a lot. I felt like I was being watched. Colin wasn't looking at me; he was more interested in the same scratches I noticed before. So what was it? Nobody else was home. I shook the feeling off, thinking nothing of it. I told Colin the Pipes must be having problems. Just to sooth the tension that suddenly rose.

I always feel like I'm being watched. I Can tell when somebody walks in my room. Like when I'm reading a book or something, and somebody walks in my room, I can tell their in my room, even if they've made no sound. And I've Been Sensing people walking in my room, but when I look up, nobody's there. There's just a sudden Chill that spreads around the room. I see things. Not like Solid Things. Like Orbs. I don't need a camera to see them. I can just look into a dark room and see orbs. I can look into any room, light or dark, and see orbs. Not ALL rooms have them, just some.

It's weird. Just like I can tell when something bad is going to happen. Like The other day I had this horrible feeling, and then that night my friend called me crying, because her grandfather passed away. And Today, I had a bad, bad feeling; I was paranoid all day because I knew something was going to happen. And me and my Boyfriend broke up. I wasn't ALWAYS like this, I used to be normal. Now I'm like this, and I feel watched. Like I'm never alone. I never feel safe when I'm in my house. I stay up late because I'm afraid to close my eyes. Any Explanation? Any Help Is Accepted.