My sister is 21 years old suffering from memory loss, means she something within a minute like absent minded people. It is happening from 6months. Now a day we are observing that she always find herself in fear. She always thinking about something which is baseless. From last 2 it is very much increased, she started doubting her who call her to enquiry about her health. Why did she call her? she is not good? she is planning something wrong against me etc. She always has a fear that something is going to be wrong with her.