The vast majority of headaches are benign and self-limiting. Common causes are tension,Neck pain, migraine, eye strain, dehydration, low blood sugar, and sinusitis. Much rarer are headaches due to life-threatening conditions such as meningitis, encephalitis, cerebral aneurysms, extremely high blood pressure, and brain tumors. When the headache occurs in conjunction with a head injury the cause is usually quite evident. A large percentage of headaches among females are caused by ever-fluctuating estrogen during menstrual years. This can occur prior to, during or even midcycle menstruation.
Headache causes
Altered mental status causes
Headacheold
Syncope causes
Seizure causes
Epilepsy causes
Eye injury causes
Conjunctivitis causes