Welcome to healingwell and to the bipolar board. When I get hypomanic I get sensitive to noises too, but nothing like you describe. Mostly I just find it impossible to concentrate when music is playing or people are talking. I cannot filter sound at all.
I did a little looking around and hypersensitivity to sound is a medical condition. Have you ever talked to an audiologist about it? Been tested for hyperacusis or any structural problems with your ears?
Co-Moderator, Bipolar and Depression Forums
"Bipolar disorder can be a great teacher. It's a challenge, but it can set you up to be able to do almost anything else in your life." - CARRIE FISHER