Headaches and nausea
Headaches are pain who resent within the braincase. The proper term to describe these pains is the "headache". This headache is presented in different forms, but always translated as an underlying disease or dysfunction.
The headache is not a disease but a symptom. Therefore, should not be confused with migraine, which itself is a disease where the headache is often the only sign is observed. In any case, in common parlance, the headaches can mean at the same time, headache and migraine.
One can distinguish acute headaches, repetitive acute headaches, headaches of progressive severity, and chronic headaches. The type of headache depends on the disease and may be accompanied by nausea. Acute headache is the sudden onset and mild or severe.
This is expressed most commonly, by a serious cause essentially of vascular origin, such as hemorrhage of the meninges, cerebral venous thrombosis, dissection carotidynia, or increased blood pressure.
Possible causes of headaches
Certain therapeutic manipulations induce headache, such as lumbar puncture or taking certain medications such as nitrated derivatives. Relapsed acute headache is characterized by a sudden onset of high intensity, and occurs frequently, and always with a certain periodicity.
