Welcome to HEalth CAre Magic
You believe that your identity is different and your name is "Hefner". Try to varify the truth of your belief with your friends, relatives and others. If all of them are denying then it could be that you are having fixed false beliefs called "delusions". Delusions are seen in schizophrenia
. In this illness patient believes something which is not true and believes it with strong conviction. If you find that you have schizophrenia you neednot panic. There are very good medications available now. Try consulting a good psychiatrist
and start using the treatment.
Thanks and regards