Paranoia or something else?

Anyway this has been going on since i was very little. Im very paranoid. Ill check and recheck the locks to make sure theyre locked. Ill check each room, all the closets, and check all the windows to make sure theyre locked too and ill look out of them to see if anything is there. Somedays ill do this multiple times. When i come home from work i make sure no one is following me. Sometimes ill think the neighbors, my family, or my bf are trying to poisin me. I sometimes feel like there are cameras in the shower, in public restrooms, etc. Im a very BIG hyperchondriac. I often hallucinate at night, mostly visual but sometimes ill hear voices or music playing. I always think someone is planting a bomb outside my window. Sometimes when i wake up, i feel paralyzed & my body 'shakes' feels like im having a seizure. These symptoms come and go, and leave me w panic attacks. Ive been prescribed Celexa and Klonopins, but too scared to take them cause i dont wanna get crazier. What does this sound like?