You must consult with a doctor as soon as possible if you find the below-mentioned symptoms: When you find that you are suffering from a terrible headache often you must visit a doctor to diagnose it accurately. When You are taking over-the-counter drugs but have not getting recovered from such bad headaches you must visit a doctor as soon as possible. When you can not work, sleep or do any other work properly due to headaches you must go to a doctor immediately otherwise it will be too late to cure. When you visit a doctor he will want to know your present and history and prescribe some tests to diagnose your disease accurately so that he can begin his treatment to make you cure. Life-taking situations like stroke, encephalitis, or meningitis can occur due to headaches. Immediately visit a doctor or take admitted to a hospital if you have the below-mentioned symptoms: High fever of more than 102°F Faint Can not make out speech or they are inaudible to you Feeling impassive, unstable or immobilized in one portion of your body.