Do you see that scar nearby Anakin's eye ( I am not saying which one cuz I don't wanna be something like "The other right!"). I think that's what they have in common. And they are both "The chosen ones" of their movies/books. And Harry's scar is burning when Voldemort is angry or somewhere nearby while Anakin's entire skin is burning when he loses to Obi-Wan Kenobi