Hello dear...headache may be due to many causes .....mainly uncorrected refractive error, sinusitis, migraine, tension, physical /mental stress, lack of sleep or some neurological cause...as ur eyes are ok...we should rule out other causes...in majority of patients, tension is the cause...try to relax and eat healthy diet and have good sleep..if still headache does not end then consult physician

Hi, Headaches are generally classified by cause: Primary headaches A primary headache is caused by problems with or overactivity of pain-sensitive structures in your head. A primary headache isn't a symptom of an underlying disease. Chemical activity in your brain, the nerves or blood vessels of your head outside your skull, or muscles of your head and neck — or some combination of these factors — may play a role in primary headaches. Some people may carry genes that make them more likely to develop such headache.. Secondary headaches A secondary headache is a symptom of a disease that can activate the pain-sensitive nerves of the head. Any number of conditions — varying greatly in severity — may cause secondary headaches. Consult Neurologist....