When you have a headache, if these manifestations appear, be alert, it may be a signal of some hidden diseases. 1. headache with violent vomiting suggests increased intracranial pressure, headache relieved after vomiting is seen in migraine. 2. headache with vertigo is seen in cerebellar tumor, vertebrobasilar artery insufficiency of blood supply. 3. headache with fever is common in infectious diseases, including intra-cervical or systemic infection. 4. chronic progressive headache with psychiatric symptoms suggests possible intracranial tumor. 5. chronic headache with mental symptoms suggests possible brain herniation. 4. Chronic progressive headache with psychiatric symptoms should be mainly due to intracranial tumor. 5. Chronic headache with sudden increase in consciousness suggests possible brain herniation. 6. Headache with visual impairment is seen in glaucoma or brain tumor. 7. Headache with meningeal irritation suggests meningitis or subarachnoid hemorrhage. 8. Headache with epileptic seizure is seen in cerebrovascular malformation, intracerebral parasitic hemorrhage. 9.Headache with neurological disorder may be neurofunctional headache.