I'm not sure what to do or what I've done to wrong them. I was making part of a final leg to get the rest of the Stones of Barenziah. Went from the College and down to Fellglow Keep. Got those two. Then went to Whiterun to break down and sell some things I picked up on the way. So to sell some things I walked into the Drunken Huntsman and Elrindir started attacking me as soon as he saw me. I used Calm to finish what I needed to do and left. After that I decided to go to Dragonsreach to use the enchanting table. The Jarl, his housecarl, steward and brother plus Farengar all attacked me unprovoked. I used Calm on all of them but it wore off, and they resumed attacking me even after I fled the castle. I ran and hid behind a building until they could no longer detect me. It must be a major bug, I'm not sure what happened. My bounty in Whiterun Hold is zero. I only have a bounty of 101 in Haffingar. On the way back from Fellglow to Whiterun I was attacked by two completely random spriggians. I know they have a tendency to make the wildlife around you hostile. But it shouldn't be affecting actors all the way inside the city. I also visited Warmaiden's, Belethor and the alchemist in Whiterun but they were not hostile. I'm not sure what to do here, I don't think going back a few saves will make much of a difference.