Am I not worthy of his love?

I am in a mild state of confusion. It is amazing how you can find people on the Internet. I was randomly searching my father and the relatives on his side on Facebook on the wee hours of Friday morning. I did not find my father, however, I found his oldest brother. I think that I have met him before and I know that I used to talk to one of his daughters on the phone when I was little. My early communications with his side of the family were orchestrated by his mother. She was attempting to keep the family together. When she passed away when I was 15 years old all communication immediately went away. My lifeline to my paternal family along with drugs and homelessness (on his part not mines) made for 13 subsequent years of non-communication between he and I. I don't even believe that if I were to see him on the street I would remember what he looked like. On my uncle's Facebook page, I saw pictures of my uncle, my grandfather and what I thought was my father, but it turns out that he has an identical twin brother. So it turns out that I would be able to identify him if I saw him on the streets!

I am at the crossroads where I am not sure whether I want to ask my uncle about my father and his whereabouts. I mean everyone wants a relationship with their parents, but where has he been all these years? I would like to know if he has thought about me. Has he tried to locate me? How hard did he try? Why did he walk away from me? Am I that bad of a person? Am I not worthy of his love? There are a lot of thoughts that are swirling around my brain right not. I don't want to make a decision until I figure out if this is truly what I want. Will I ever know what I want??