For a while now there has been black smoke coming from my character whenever in battle (-or when i crouch) It is not the Ebony Mail armor because I haven't even bothered to do that quest. But- I did have the shadowcloak of Nocturnal thing, but I changed it. And I did not have the warrior stone thing. I do have the DLC's Dawngaurd and Dragonborn. On the dawnguard dlc I did not join with the vampires so I know it isn't the death hound bug. Is there a command or anything to stop the black smoke? My sneak Is leveled all 100 so if it is that should i remove a perk? I have looked into the black smoke thing but nothing helps.

I think it might be one of the sneaking perks, not entirely sure. Either that or you messed with things man was not meant to know and now you're trapped on an island.