Headache and vomiting may be a normal phenomenon caused by staying up late and insomnia, or it may be caused by colds, migraines, increased intracranial pressure and other diseases. 1. Physiological factors: stay up late and insomnia may lead to the second day of the person’s poor mental state, loss of appetite, so there can be a headache and want to vomit performance, this situation usually just need to rest can be relieved. 2. Cold and flu: patients with cold and flu may also have a headache and want to vomit symptoms, in addition to patients may also appear nasal congestion, runny, nausea, limb pain and other symptoms. 3. Migraine: patients with migraine may also experience headache and vomiting, and they may also experience photophobia, phonophobia, blurred vision and other symptoms. 4. Increased intracranial pressure: Increased intracranial pressure can lead to headache symptoms, high cranial pressure stimulation of the medullary vomiting center can appear vomiting symptoms, and even projectile vomiting, the patient can also appear optic papillae edema, visual impairment and a series of symptoms. After excluding physiological factors, if the symptoms of headache and vomiting persist, please consult a doctor in time to avoid delaying the condition.