I was listening to music rather loud with earbuds two weeks ago. The next day, I experienced a blocked, muffled feeling in my right ear. When I press on it, I can hear a slight ringing. I feel no pain, and there is no discharge . I can hear ok, unless I m in a crowded environment... then I notice it more. It seems to be better at times, but I m worried because it has not gone away yet. Do you think I have caused permanent damage?