Is Central Hyperacusis a symptom of 5-HT dysfunction???

Central Hyperacusis with phonophobia in multiple sclerosis..

Neurological conditions with Hyperacusis...
Brainstem Lesion and Demyelinating Lesions in the Ipsilateral Pons and the
Central Auditory Pathway...

http://www.hyperacusis.org/wst_page5.html