I have continued to think about you and your problem and hope you will find someway to get relief. When the AC is not on, do you still. suffer? Is there any kind of white noise you could find on the internet that would help cover it, or is there a way to put some insulation over your window near it. Don't know really what will help, but maybe my thoughts will bring some sort of solution to your mind. Have a QUIET day and take care. Susan