Well, this sharp pain in the head might be due to migraine. Well,what in the world is migraine? It is a actually caused by enlargement of blood vessel.
Enlargement of these blood vessels stretches the nerves that coil around them and causes the nerves to release chemicals. The chemicals cause inflammation, pain, and further enlargement of the artery. The increasing enlargement of the arteries magnifies the pain.
Migraine attacks commonly activate the sympathetic nervous system in the body. The sympathetic nervous system is often thought of as the part of the nervous system that controls primitive responses to stress and pain, the so-called "fight or flight" response, and this activation causes many of the symptoms associated with migraine attacks; for example, the increased sympathetic nervous activity in the intestine causes nausea, vomiting and diarrhea.
- Sympathetic activity also delays emptying of the stomach into the small intestine and thereby prevents oral medications from entering the intestine and being absorbed.
- The impaired absorption of oral medications is a common reason for the ineffectiveness of medications taken to treat migraine headaches.
- The increased sympathetic activity also decreases the circulation of blood, and this leads to pallor of the skin as well as cold hands and feet.
- The increased sympathetic activity also contributes to the sensitivity to light and sound sensitivity as well as blurred vision.
Women are found to be diagnosed with migraine more compared to men. However, up until today, migraine are still under diagnosed and undertreated.