25 year old Gautami, recently started her night job at the fast food joint. She replaced a girl working there, the previous girl went missing and was found dead by the riverside. Gautami started her job with enthusiasm greetings every costumer she came across. She was all alone by herself the whole night and the orders were also seldom. She spent her time listening songs or cleaning the space. A few days later she started hearing random phone calls on dead telephone line. Soon she became paranoid, she started seeing apparition and hearing voices. She sometimes yelled at the costumers and her efficiency decreased.
Her manager asked her to take a leave and visit a psychiatrist. The psychiatrist prescribed her some drugs. A few months later Gautami recovered and didnot complain of anything abnormal.
What must be possible diagnosis?
What are the complications of these disease?