Well I managed to fix it. For anyone desperately trying to find a fix like I was here's what I did. I dleted the two files from my steam folder associated with the Dragonborn dlc. I then went to my steam account and found mySkyrim game on there. Right clicked went to properties, local files, then clicked Verify intergrity of game cache. This then checked my files and redownloaded Dragonborn for me. When I restarted the game everything was working fine.