I was playing the Dragonborn DLC. I defeated Miraak and decided to begin the Knowledge of the Black Book quest. I opened up Filaments and Filigree and began the adventure. I got into the world and completed the quest. When I stepped into the darkness, my character was surrounded by this very annoying sizzling noise, like when you get poisoned. I thought this would go away once I got out of the book. I returned to the normal world and the noise continues. I thought maybe I was poisoned, so I took a cure disease and a cure poison potion. This did not help at all and the noise still continues. It is very loud and follows my character. I really hope you can help because I can't stand to play with that noise.
P.S.: I also reloaded to the save before and attempted the quest again, but yet again the noise happened. Then when I tried to reboot my Xbox, my character kept slowly dying and had blurred vision.

A magic effect is being applied to you somehow, perhaps it is interfering with something you have on. Try wearing a different piece of armor when going in there. You might be able to see what piece is affected in third person.

Also, when loading the earlier save, wait somewhere for 73 hours before going on, to clear any script effects.