Tension headaches - also known as chronic daily headaches or chronic non-progressive headaches. This type of headache is the most common. It may come and go over a prolonged period of time. These muscle contraction headaches cause mild to moderate pain.
Migraines - the exact causes of migraines are still unknown. Migraines are related to blood vessel contractions and other changes in the brain. Inherited abnormalities in certain brain areas also can be the reason. The pain is moderate to severe and can last from several hours to several days and occur 1 - 4 times per month. Migraines are associated with symptoms such as sensitivity to light, noise, or odors; vomiting or nausea; stomach upset or abdominal pain; loss of appetite.
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