What Causes Severe Headache?

i have seriou headache if i weeping then the hadache no control the problem was 3 years. in first time i checked my eyes and immediTE MY spacs no. in high before that i have no eye glasses. headache is not control sometimes i tight a cloth but no solution, i doubt to migrane but headache sometimes feel like very painfull . pls help me my email id is YYYY@YYYY