Welcome in H.C.M.
I have gone through your query regarding about your right sided frontal headache and double vision
from your right eye.You are also having numbness
over right cheek area anterior to ear.
All these features indicating as there is pressure over orbit. This can be possible if there is any space occupying lesion in nearby sinuses, to rule out this suspicion you do your X-Ray paranasal sinuses
,and if any such pathology found than specialist care will be necessary to save the vision and correct the sinus.
Hope your query is explained.