I Don't Know If I'm A Medium Or Not

I'm don't know if I'm crazy! I'm mia, I'm 13 and I have always been interested in the paranormal and I have really never experienced the most normal things... I just thought I was normal. I believed I had a ghost in my house and when I was around the tv would shut off or the dish washer would start going and maybe the back door would open and at night I would hear foot steps in the hallway but no one else in my family would hear it. When I walk into a room I can sense good and bad energy and other spirits around me, never thinking much of it I thought it was normal but when I tried talking about it no one seemed to relate. Most nights I will wake up suddenly because of the feeling someone is watching me. When I walk into rooms filled with people my head hurts. I have only told 2 of my closest friends and more and more things have been going on and I really need someone to help me out. I have been doing research and I guess its only supposed to get more hectic. I have also had a few out of body experiences also. Sometimes at night I hear whispers. My dads owns a steak house and by far its haunted. I can feel the energy there. Also I feel like at my grandmas house the energy is constantly like, bugging me I guess. One time I had a dream, recently that my dead dog told me to tell my dad he was alright in heaven. I woke up from that dream but I felt like I had to tell my dad but I'm not sure he my dad understood. I'm really scared that if I tell people at school they will think I'm crazy. Help?