•
Headaches that first develop after age 50
•
A major change in the pattern of your headaches
•
An unusually severe "worst headache ever"
•
Pain that increases with coughing or movement
•
Headaches that get steadily worse
•
Changes in personality or mental function
•
Headaches that are accompanied by fever, stiff neck, confusion, decreased alertness or memory, or neurological symptoms such as visual disturbances, slurred speech, weakness, numbness, or seizures
•
Headaches that are accompanied by a painful red eye
•
Headaches that are accompanied by pain and tenderness near the temples
•
Headaches after a blow to the head
•
Headaches that prevent normal daily activities
•
Headaches that come on abruptly, especially if they wake you up
•
Headaches in patients with cancer or impaired immune systems
•
Headaches that first develop after age 50
•
A major change in the pattern of your headaches
•
An unusually severe "worst headache ever"
•
Pain that increases with coughing or movement
•
Headaches that get steadily worse
•
Changes in personality or mental function
•
Headaches that are accompanied by fever, stiff neck, confusion, decreased alertness or memory, or neurological symptoms such as visual disturbances, slurred speech, weakness, numbness, or seizures
•
Headaches that are accompanied by a painful red eye
•
Headaches that are accompanied by pain and tenderness near the temples
•
Headaches after a blow to the head
•
Headaches that prevent normal daily activities
•
Headaches that come on abruptly, especially if they wake you up
•
Headaches in patients with cancer or impaired immune systems