Hello,
Welcome to the ehealthforum and I am glad to help you out. The two most common causes for your symptoms can be schizophrenia and mania. Schizophrenia is also called split personality and in this there are abnormalities in the perception or expression of reality. The cause is increased dopamine activity in the mesolimbic pathway of the brain. Treatment consists of antipsychotic medicines, cognitive behavior therapy and psychotherapy.
Mania is usually associated with bipolar disease and hallucinations are an important aspect. Treatment usually consists of the mood stabilizing drug-lithium, anticonvulsants, antipsychotic drugs and benzodiazepines.
My sincere advice would be to get it evaluated from a psychiatrist.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care.