Ive been coming to and from Whiterun with absolutely no problems at all but now for some awkward reason everyone in Dragonsearch except for the Jarl is attacking me. I ran to his room and its pretty much the only Safehaven. He talks to me just like normal so I dont understand why everyone else is being so hostile. Does anyone else know of any inparticular reason why this would be happening?

Have you tried having a bath in the river?