Once you've done enough research to see that all of those old "prophecies" were first, written after their "first fulfillment", and two, were not supposed to have any lattter day fulfillment, you can sleep well. You won't worry about that crap when you learn that.
This "dual fulfillment crap" is a product of the Second Adventists in the mid-to-late 19th Century. Hell, they were looking for "signs" and "anti-types" in their very own own boogers. Losers. They're all dead and nothing they predicted happened.
Chuck Russell was majorly influenced by them. Look what that got us: Garbage, that's what. Nothing happened with his crap predictions, either. Loser.
So, who's the "King of the North?" Well, look back at Daniel and he will tell you, since his book was also written after-the-fact. He "predicted" Alexander the Great" a few hundred years in advance! Amazing stuff! He pridicted he book would be "sealed" until the "time of the end(tm)" but he didn't bother to tell anyone what he meant by that.
Russell told us the 'answer', however. But he lied and he died. So did Daniel and all the people who made up the modern book we call "Daniel." After all, it isn't signed by Daniel. It could have been written by "Herman" who put "Daniel" as its author. These things happen, you know. Bible writers lie, too, you know. I have tons of facts to prove this.
Farkel