I'm DYING to get Code of the Clans! I went to the book store yesterday and got Secrets of the Clans and it is really cool. I read all the regular warrior books and now I'm reading seekers, but they didnt have ANY of the manga books or the other books at the book store though.
A sinus infection can cause clogged ears, ear pain and temporary hearing loss. A sinus infection is when your nasal cavities become swollen or inflamed, either due to an infection or as an allergic reaction. Ear pressure is a common symptom related to sinus infections.
For people with hearing loss, the sound signals from the inner ear to the brain will be weaker than normal, and it's possible that the brain amplifies these signals too much to compensate, resulting in hypersensitivity. However, this doesn't explain the cause in those with hyperacusis and no hearing loss.