These headaches could be primary like migraines, cluster or tension headaches depending on the characteristic of
the headaches you are having.
The onset post
stroke could be incidental. These headaches could be due to stress, anxiety, migraines or tension headaches, sinus headaches radiating to the ear, headache usually front of head, on one or both the sides of temples along with nausea, vomiting, irritability, low blood pressure, sensitivity to lights, sound, etc.