A large fronto-temporo-parietal extradural haematoma
(EDH) usually causes raised intracranial tension requiring urgent evacuation (surgery). Subarachnoid hemmorhage (SAH) are usually managed conservatively .
I suppose your case was adequately managed with proper follow up evaluation along with scans, to rule out further re-accumulation and any clinical deterioration.
Well with a dual haematoma , EDH along with SAH ,it is probable that there might be minimal neurological sequelae like dizziness
. Do not have to worry much unless there is deterioration of consciousness, convulsion
or severe headache
. I hope you are taking the prescribed medicines regularly.
As far as fitness for flying is concerned , do get in touch with your treating doctor .
If apart from dizziness he is fine then I dont think he has to much to be concerned about.