Doctors can check on the blood pressure by wrapping a machine on the upper arm, inflating the cuff and listening to the flow of blood using a stethoscope. Normal blood pressure is around 120 over 80. Should this be 140 over 90 or higher, the person has hypertension. It isn t hard to tell one has high blood pressure given the size of the patient. steam and painkillers that should relieve the symptoms but if taken in wrong dosages can lead to severe and throbbing pain, fevers that are untreated like flu, tonsillitis, chest infections and the like, neuralgia or due to the irritation of the nerve that produces pain sensation in response to outside activities, and glaucoma or other acute eye problems that most of the time lead to severe frontal headaches and deteriorating eyesight. A migraine attack can also be alleviated by lying down in a quiet and dark room for several hours to sleep or meditate to relax the mind. There are also other therapies that are being employed in order to help prevent migraines. This includes maintaining a proper diet by avoiding foods such as chocolate, caffeine or alcohol that can trigger a migraine attack. Before taking in any medication or undergoing any treatment to bring relief to your aching head, make sure that you know first what are the different types of headache and possible causes of the common illness. HOW ARE HEADACHES CATEGORIZED Studies show that 90 percent of all types of headaches are classified as tension and muscle contraction. There is however one kind where in the person may see a visual hallucination, called an aura, before the actual migraine headache occurs. This kind is called the classic migraine headache. The classic migraine headache is a lot different from what specialists call the common headaches, which occurs without any warning whatsoever. Migraine headaches may not seem so serious but without proper care and proper diagnosis, those headaches may develop into something more. It is recurrent and may be a manifestation of an underlying problem in the brain that can be really dangerous. Causes of migraine Migraines are actually caused by the changes in the size of the blood vessels that are found in the brain and in the head area.