Hm, could be a glitched UI. Looks like you phased into a zone with a daedric influence (some cause the screen to take a blue hue).
I guess you've already done a /reloadui? Any recalls to, say, another island?
Yes, I have done it. But im so fustrated I do not wish to lvl a new nightblade. This really destroys my game. Also I've asked support, they just want me to read FAQ incase my error is there, they dont help at all.
Alright i had the same issue that you had and i fixed it. What i did was went back into the dungeon Ezduiin Undercroft and i had to go back into my realm i guess you could call it. It looks like a bright little cloud.