Well I'm using sacrosanct as my vampire mod....and....its night eye is toggleable with no duration limit, so I might've turned it on at one point but never turned it off and it just keeps doing that. the way my character works there is a lot of buffs on them at any one time so its very possible that it just got lost in the clutter. hopefully thats all I need to, and it would make sense because the lighting returns to normal indoors.
Edit: okay so, vampire night vision is not doing it, because I turned it on and off, it barely changed the bright day lights so, I dunno, I have no ENB, because I'd remember doing something that inconvenient, because an ENB is something you have manually install directly rather than using a mod manager, whatever is happening is during the day, night is fine,its makes everything look glowy and bright. I could try putting IN an ENB in and see if that will fix it, but I don't know how this works, so I'm not sure if I should do that.