Hearing problems, such as sudden hearing loss and tinnitus (ringing in the ears), CAN be symptoms of multiple sclerosis - even though you may have to work to convince your neurologist of this.
I have put together an article on this subject, although it was hard to find information on this in the medical literature. Read the full article: Hearing Problems and Multiple Sclerosis.
Now I ask the real experts - you. Have you ever experienced any hearing-related symptoms? What was it like? How fast did they come on? What did your doctor say? How long did they last? Tell us your story in the comment section below.