Thank you for posting your query.
My deepest condolences are with you and your family during this period of grief. May God grant you the courage.
Regarding the cause of death, as you mentioned, we do not have enough information at this moment.
However, if the cause was related to brain, then sudden death can occur with brain hemorrhage
in the brain). However, autopsy will be able to identify the exact cause.
Dr Sudhir Kumar MD DM (Neurology)
Senior Consultant Neurologist