Re: Why I kept hearing ringing or sound off and on?
Yes OF COURSE let your audiologist/ENT KNOW about that, it is VERY important. That ringing in your ear is called "tinnitus" and it can get permanent. I had something that looked like an ear infection about one and a half year ago but I didn't go to the doc. I was getting that ringing for like 15 seconds few times a day but after a few weeks it became permanent and I can hear it every time I go to sleep or when its silent. I regret that I didnt see a doc on time.
This can have a million causes and your hearing loss can be connected to it too.
Tell your doc EXACTLY how and when you feel it.