Welcome to Health care magic
I went through the history you have posted.
It seems your husband is having severe migraine
. Since CT scan
and X ray
is normal no need to worry about the other causes as this rules out ENT causes like sinusitis
and intracranial causes.
This requires treatment for migraine by use of ergot alkaloids and anti-inflammatory drugs.
Do consult your doctor for further evaluation and treatment.
Do write back to me for further questions.
Thank you for writing to health care magic.