I no longer remember the names of friends or people I am acquainted with?

Hello Doctors.. My name is (…) Male 28 years of age. For the past 1 year I have had a bad loss of of memory. I no longer remember the names of friends or people I am acquainted with. I start forgetting the names of persons whom i know and recently met. I have difficulty with learning new things and to speak in my native tongue. I forget all kinds of things like street names and other normal things. What is wong with me. Please advise what I should do?