Dear Welcome to HCM We understand your concerns I went through your details. I suggest you not to worry much. From your description this seems to be a psychiatric / psychological problem. Split personality or multiple personality, illusions / delusions, scared of noises etc are clear symptoms of schizophrenia / depression. Please consult a psychiatrist for immediate treatment. If you require more of my help in this aspect, Please post a direct question to me in this website. Make sure that you include every minute details possible. I shall prescribe the needed psychotherapy techniques which should help you cure your condition further. Hope this answers your query. Available for further clarifications. Good luck.