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A lot of things can cause severe headache, but the most common are extreme stress, emotional distress, or underlying medical/health conditions.

If you subject your body to intense stressful conditions either physically, mentally, or emotionally, you are likely to have a headache and this type is known as a primary or standalone headache.

You could also have these headaches without stress, constantly too and this is usually a way of your body telling you there is something wrong somewhere, medically.

To know which is which, you would need to go for a checkup to get a proper diagnosis, especially if you haven't undergone any kind of stress lately.

Mainly this happen because of high tension and lot more tension taking extrme thinking of high burrden on yourself this are the main reason.
In todays grneration people mainly takes to much tension of their life and many more things.

Such problmes mainly damaged the our working style.Taking more tension is not good for the life.

High burrden of work on the daily bases cause this problem mainly.Work daily 10 hours only and give proper rest to the body.

Some of the students also get this problem because of higher exam tension.so do not take more tension in life.

Headache happens when we are having a burden of work to do and still we are not able to complete the work in time.
There are many other lots of possibilites of severe headache as headache can be caused by stress, lonelyness. Headache has a lot of pain in our head and due to this our day can be bored if there are lots of pain in our mind.

Our mind can be disturb with this and we can have a problem of mental dissorder due to severe headache.

Headache can be have a major problem if we are not able to cure or take the medicine on tine bscause it has many other problem due to severe headache.

We are leaving in a very populated country where nornal headache is still there in each and everyone life due to pollution, noise pollution, traffic this all are major causes of headache in our routine life.

Well there are different kinds of headaches and each of them is caused by different but similar reasons.

We have

Tension headaches
They are relatively harmless and are usually caused by stress or as a side effect of an illness of malaria

Sinus headaches
This occurs as a result of the inflammation of the sinus. This then causes pain in the forehead and the area just behind the cheekbones

Cluster headaches
This is a type of a headache that's characterized by a circular pain around one side of the face as well as nasal congestion or running nose and watery eyes.
It has no cure and scientists believe that cluster headaches might be genetic