New Speculations on the Causes of Sound Sensitivity..

Another possible cause for Sound Sensitivity is Mercury Poisoning..

Research on Mercury Toxicity has clearly show that it can cause

Sound Sensitivity.......

http://www.autismwebsite.com/saitwebsite/cause2.html

Sound Sensitivity , Mild to Profound Hearing loss...

I found this on mercola.com

But I've read up on this allready elsewhere...

Glutamate Toxicity and neuronal cells...
in neurons, cells & liver to detoxify heavy metals.
Low levels ... well as hyperacusis, otitis media, and conductive hearing loss, in a ...
exposed to thimerosal in ear drops,

http://www.the7thfire.com/PycResGlutamateTox.htm

The auditory system is damaged by mercury poisoning in Minamata disease.

The auditory system may have special importance for the brain as a whole. Fisch (1970) pointed out that the auditory system is always active, even during sleep [118] -- this is why we use alarm clocks to wake up!

The auditory system evolved as an alerting mechanism for visual attention, and there is evidence that the inferior (auditory) and superior (visual) colliculi in the midbrain tectum might have special importance for general awareness and consciousness [119, 120].