I'm 14. Is this normal, or is it some level of anxiety?

Okay, so, as mentioned I'm 14. And I'm, like, always worrying. About tests. About the future. About disappointing those I care for? Sure. Guilt for no reason. But things that affect my daily life as well. I'm scared to death of something bad happening to me or a loved one. My dad, most notably, because I had an out-of-body experience or something. Doppleganger. Long story. Anyway, I'm scared of basketballs (like crazy) and all types of balls. My heart starts beating faster, my head spinning, and I cannot talk and I hyperventilate and instinctively run away. I feel like I'm in the middle of a battlefield and my head pounds. I'm scared that when I'm on a bus, there will be a bomb, or on a train. Or a car crash, or maybe a plane crash. Every time my dad goes on a business trip, I tremble and cannot fall asleep without crying like crazy and twisting and turning. I'm terrified of bombs and being held at gun-point and being stabbed and of tazers. I'm scared of any sharp object, including pencils at times. I'm so scared of food poisoning, and of dolls (so it doesn't help that I have a stalk of collection dolls staring back at me in my room), I'm scared of heart attacks or sudden health problems coming up. I'm also terrified of stalkers being everywhere and being followed and someone breaking into my house, under my bed, even though I live in a relatively safe community. I guess somewhat low crime rates. So basically, is this normal, or should I take medication? The most ironic thing is that I'm scared of the roof falling on my head or of drowning or of suffocating to death. I've spoken to my parents about it but they claim I've just been watching too many movies -- not true. They wave it off. Help?