The "dead spot."

November 21st- My elbow has been having some issues since the second week or so of October. Suddenly the skin started turning white and even though you can't really tell in the picture the area where it has turned white is also sinking in. It also kinda hurts and is especially bothersome at night. My aunt Michele calls it my "dead spot!" My aunt Suzanne has had bad dreams about my elbow ever since she saw it and told me she thinks I have a disease of some sort- "elboa!" Ha ha. My Grandpa Craythorne also keeps telling me to go in to the doctor. Anyone ever had this happen before?! I guess maybe I should go to the doctor...?