Hearing loss was what got me my eventual MS dx. I was sitting at my desk one day and all the hearing went away in my left ear. Went to the PCP right away and he shuttled me to the ENT same day. They took and MRI a week or so later and saw lesions. 2 years later when a followup MRI showed more lesions, I got my dx.

My hearing was totally gone in my left ear for about 4 weeks then slowly started coming back. By about 8-10 weeks out, I had gotten most of my hearing back. I still have a slight deficit in that ear that makes it difficult to tell what direction sounds are coming from and gives me trouble hearing conversations in rooms with lots of other noise. I still have tinnitus pretty much all the time, and sometimes my hearing seems to come and go a bit...but only for a few seconds or minutes at a time.