IS MY HOUSE HAUNTED!?!?!?

Ok well I'm 13, and I live in a one story brick house. Now some unexplainable things have been happening quite frequently. Ok well my parents went on a date and left me at home, I was listening to the radio when I heard someone call my name. I went to the living room and saw nothing and I looked in the driveway and still saw nothing; It freaked me out but I thought it was just me imagining things so I didn't really tell anyone. Another thing that bothers my is sometimes when me and my dog are asleep (she sleeps with me) she'll suddenly wake up and start barking at absolutely nothing. I look out the window, or look for a bug crawling around or something but I cannot find or hear anything. But the thing that really freaks me out is sometimes at night around 11:00 or 12:00 i'll go in the kitchen i'll get something to drink or etc. but the whole time while i'm in the kitchen I have this feeling i'm being watched. Now even if I turn on the kitchen light or bring the dog or my cell with me nothing seems to sooth the feeling, and when I walk back to my room that's when I really get that feeling. I don't know if this really counts but I'll be going into the living room and while i'm in the hallway I'll get the chills, when It's really not cold in my house but I don't know if that's a coincidence or not. Also when my friends/family come over they always tell me they get a strange vibe from my house; but I don't know if they're trying to freak me out or they're telling the truth. But my NaNa passed away about 3 years ago and we were really close so sometimes I wonder its her watching out for me which would explain me hearing voices and the feeling of being watched. So my question is: Is this a haunting, is this a good spirit that would go away if I tell it ? Now I already told my parents that this is bothering me but they don't seem to care or they think i'm making this up which i'm not. By the way if you don't believe in the supernatural please don't comment. Thanks in advance and have a blessed day.(: