Okay, I have a nightmare about me being chased by the Green Goblin (movie version) and nearly being killed.?

dude, ever read Ultimate Spider-Man? If yes, then you are simply re-enacting an aspired persona, you wanna be Spidey, but you've got the danger without the power. You're being chased for being what or who you are and you cannot bring it forth to face it (typical nightmare situation of helplessness). If it happens again try something, throw a web at goblin, throw your hand out towards him and see if you've got some sense of power, take something back and see if you can do something other than run, because running in dreams ultimately doesn't end or becomes futile.