My son (7yr) for the past 4 days at around 8p-8:30p runs to the bed to lay down and covers his ears and wants me to turn off the light and tv. he says that if he goes to sleep it will go away. what? he says he hears us talking to loud and things are moving to fast. I took him to the ER and blood test was normal. a night before i took him to the night clinic and the PA said he looked fine and wanted to refer him to a Neuorologist to make sure its not seizures he is getting. he had congestion for 1week and just started with fever 101-103 last night and vomiting.
question: what can it be and why does he say he sees thing moving fast and hears us talking to loud?

thank you,
Genie