Nearly fucked up my game.... Was in Riverwood, and 2 dragons appear. Take them both down, but accidently hit that Sven arsehole. So there is now a bounty on me, and couldn't find a guard to lose the bounty. So fast travel to Whiterun, and the guards attack me there. Decide to reload my save, and the three saves are from when I arrive at Whiterun, when I go into the inn at Riverwood, with a bounty, or when I was a prisoner right at the start.
Reloaded my game, Ended up running for my life, and somehow finding a guard outside whiterun.