It sounds like you have a case of tinnitus. It's basically ringing in the ears, but sounds like different things to different people. For me, it was like a computer screen buzzing, but really loud. For the first couple of months it was constant and overwhelming. As I've started to heal, it's like someone has turned down the volume. Its still there, but I can tune it out most of the time. However, if I'm having a bad day or do too much, it increases to full volume.

It's been a good barometer of whether I can tolerate different activities/situations. I hope this helps.