This symptom of fibromyalgia is not far removed from the condition of allodynia because it is wrought and processed through the brain in a similar fashion.
At any given moment, there is what can be considered an overwhelming amount of sensory input received—sounds, smells and sights—that all require energy in order to separate, categorize and process in the brain.
When the brain encounters difficulty trying to sort through all the information at once, the input is reflected in heightened sensitivity responses.
Fibromyalgia treatments tend to be whole-body oriented in nature. Sometimes medication that is usually prescribed for the prevention of seizures can be used to counter these elevated sensitivities.