Some of the same reactions as with cochlear hyperacusis can also occur, along with sudden severe vertigo or nausea. In some cases, vestibular hyperacusis can affect the autonomic system and cause problems such as loss of consciousness, mental confusion, nausea, or extreme fatigue. In both cochlear and vestibular hyperacusis, headache is common.
The Elias Howe Company was a 19th and early 20th century musical firm located in Boston, USA and founded by Elias Howe, Jr.. His company was successful, selling more than a million copies of his music instruction books by 1892. Howe was cousin to the inventor of the sewing machine and related to Julia Ward Howe, composer of The Battle Hymn of the Republic.
Elias Howe: Elias Howe, American inventor whose sewing machine helped revolutionize garment manufacture in the factory and in the home. Interested in machinery since childhood, Howe