No one can know without any doubt what exactly is going on with you. I believe it is very possible that you are experiencing a past life memory. It is also possible that there are parallel lives. Then again, the man could be someone you saw on TV or in a movie at some point in your young life. And perhaps the character is an 'imaginary friend' you created...then too, he could be part of a psychosis.

The greatest doctor in the world can't tell you for sure. What concerns me is that you don't feel like you are living your own life. That seems awfully sad to me...regardless of what's 'really' going on, you deserve to be living your life as the man you are. It is for that reason that I suggest you talk with a mental health professional...start there and see where it takes you. Best of luck!