Im vampire lord and i have dawngard dlc instaled but people are attacking me on fourth stage of vampirism,i know that this isnt supposted to happen when you have dawngard dlc instaled....i reinstalled game and still got this problem,help.

Hmmm... never had this problem. Are you sure you didn't do something to cause it? Kill a chicken, attack someone, feed when you though no-one was looking but were spotted, etc.? Re-installing wouldn't fix a record of your crime in your game save...

Just thinking out loud...

edit: your VL form will always inspire mass panic, though, so if someone has seen you as VL that could be the problem, too.