A headache is a pain that is experienced at the head or the upper neck. When a person is experiencing headaches for more days than fifteen days in a given month, it is considered that the person is experiencing daily chronic headaches. If this is happening for at least three consecutive months then it is considered to be as a chronic headache. The chronic headaches should however not be brought on by any another medical condition. Daily chronic headaches are classified by how long they last, that is, headaches that last for at least four hours, and those that last for less than four hours.
Chronic Headaches Lasting for at Least Four Hours
Chronic Migraine
Symptoms
At least two of these symptoms of chronic migraine must experienced:
These symptoms may result in nausea, vomiting or both, along with sensitivity to light.
Chronic Tension-Type Headache
These types of chronic headaches are the most common, and evolve from episodes that may last for hours or be constant. They occur in response to the muscles which cover the head becoming stressed, and then they start to contract and cause pain.
Symptoms
The symptoms of chronic tension-type headaches include:
The symptoms cause sensitivity to light and mild nausea.
New Daily Persistent Headache
Within a few days after experiencing the first headache, the condition gets consistent.
Symptoms
At least two symptoms of new daily persistent headache are experienced,these are:
The symptoms cause sensitivity to light and or mild nausea.
Hemicrania Continua
The main symptom experienced with hemicrania continua, is pain on one side of the head that does not shift sides.
Symptoms
The symptoms results in at least one of the following:
Chronic Headaches Lasting for Less Than Four Hours
Important to Note
Primary daily chronic headaches do not have an underlying cause that is identifiable.