I have problem of headache on every first working day(monday) of week, It starts from head and gone to one of the eye from two and it is so harsh that if i see some light (like head light of bus) directly it cause so much pain and it will be cured only if i will take a calm sleep of 1 or 1/2 an hour, it mostly happen on first working day. I work on computer for a full day(9 hours job).