Welcome to Health care magic.
I went through the history provided by you.
It seems from the history that you are having sever headache with bruise
under the eye. Bruise is because of bleeding into the layers of skin of the eye lid.
Since you are having severe headache
and there is no history of injury
or trauma, elevated blood pressure / hypertension
needs to be ruled out.
You need to consult your physician doctor for examination and treatment of the underlying cause accordingly.
Thank you for writing to us