Hi, I was wondering if anyone knew what can cause My hearing to go away and come back as if an on/o0ff switch? for a few years now I have had what i can hear as an 'eeeeeeeeeee' (long e sound) in my left ear several times a day, cant say if everyday but enough times throughout the week. There have been a few times when I have felt some pain,small amount but something, when they occur. Maybe for a couple of years now I feel it has progressed. It's as if you were in a concert and you're hearing fine then when you exit it's like a deafening silence after a couple of seconds you can hear again. Like you are hearing fine then suddenly sound is turned off (deafening silence) like a switch, couple of seconds later sound is turned back on. I am 36 yrs old. What is causing this? And also, if whatever is causing this can also affect your vision. Just to see if there is some connection for I have also posted about another problem I have with my vision in another forum. Thank you for any help you may give me.