You know those nobles who walk around with their bodyguards? Well, suddenly the bodyguardshave started attacking me whenever I get anywhere near them. I don't have any bounties in any of the holds nor have I chosen a side in the civil war. Why do they suddenly have a problem with me?

What bodyguards are you talking about? It could be a bug.

Though it kind of makes sense - if you got too close to say, the President of the US, his bodyguards would probably assume you were trying to kill him and attack you. Minor nobles with bodyguards though - yeah that's overkill.

The imperial bodyguards that walk infront of the nobles. Thry just simply attack me. Never happened to me before, now it happens whenever I come across them.