help me please!.

hippyvan123: I have been seeing things a lot. i have enough sleep and am not tired at all. I will be casually sat and i will see a young girl, she walks around with me. I have had this befroe and i thought she was a gardian angle, but this girl is different' she is very scary. i see her dead, ilive, standing walking.. i hear her voice inside my head. is she after me, what the hell do i do?