Sensitive To The Paranormal

I need help determining what I am. I don't know if I'm just sensitive to the paranormal or what, but here we go. Okay, so I am a teenager now but I have just started having experiences within the past two years. The first thing that happened to me was that I was sitting in a restaurant that was an old house and then was renovated into a nice restaurant and this was my first time going there. I was just sitting there with my family, minding my own business, eating my dinner and all of the sudden, the back of my shirt gets yanked back. All of my family looked up thinking I was having a fit or something because it was just so sudden and weird. My immediate reaction was to turn around and see if it was just someone I knew or someone just messing with me. No one was back there and there was no way that someone could have done that. Then later I found out that the place was haunted. So what makes me wonder is why touch me out of the 50 people at the restaurant? Weird. Also, I babysit in a haunted house. I put the kids to bed and I was sitting on the stairs and heard noise in the next room like people were talking in there, shuffling their feet and flipping through papers. I kind of freaked out and then later I found out from someone else who lives on that street that an elderly couple died in that house from cancer and their hospital beds were in the room I was hearing noises in. So I told the people I was babysitting for that I heard weird noises and they said that they have no idea what that could be. How is it that you don't know your own house was haunted but I do the first time I go there? The thought of that freaked me out. Also, I have had deja-vu all of my life, and so have my mom and my grandma so is that hereditary? When I have it, I have it like 12 times in a row and at least like 3 times a week. And I have strong feelings about things that WON'T happen, comparing to things that WILL happen. Like during the day, I can tell when I won't have practice after school for whatever reason. So one day I decided to tell my grandpa about how I knew about things happening, he started messing with me saying to make a prediction of our car ride on the way home and I responded saying that there was going to be an accident and there was a coincidence? Probably. I can also guess numbers pretty well when people think of them. Anytime I walk into an old place, I can immediately know it's haunted by the feeling it has. It is a heavy feeling that is sort of overwhelming. I really don't know what is going on with me? Anyone's advice will help me! Thank you!:)