Hello dear, Thanks for being on healthcaremagic.com. Old stroke should not result in headache as a sequaele.However,sometimes associated factors may cause headache like if the stroke is associated with high blood pressure or if the old stroke was a subarachnoid hemorrhage and it was associated with aneurysm. However,the headache you are having is a kind of episodic headache and site(at the back and the front above brow) is more indicative of a primary headache like stress headache. Still,not to take chances you should get your blood pressure checked and discuss with your neurologist to get the follow up CT scan of brain. I hope it helps.