Thank you for postig your query.
First of all, we need to resolve whether or not your friend has an aneurysm. This can be done with the help of cerebral angiogram. If it has not been done, please get it done after discussing with his neurologist
Regarding his repeated headaches
, if his brain scans are normal, then most likely it is due to migraine.
He can be started on preventive medications such as topiramate
to prevent repeated headaches.
Dr Sudhir Kumar MD DM (Neurology)
Senior Consultant Neurologist