You want information about headache causes, but it's difficult if you don't know which specific headache diseases to search on the Internet.
Relief is here.
Users successfully completing the survey get a list of the causes of head pain most closely matching their responses. Headache is a symptom, not a disease. At least 250 diseases and disorders have head pain as a symptom and there are 550 possible characteristics to be considered in arriving at a diagnosis. Common chronic headaches such as tension headaches, classical migraines, tmj and infectious diseases are considered, as well as rarer conditions like tumors, opthalmoplegic migraine, neuralgias and hormonal problems. The expert system is based on the leading textbooks and medical journals.