First of all i would like to ask you about the type of headache you suffer from. Is it constant through out the day?
Does it increase on bending down ?
Or Does it increases gradually as the day passes?
Or does it increase with stress/Sun exposure?
High blood pressure
can be a cause for headache. Kindly get your Blood pressure measured. If Your blood pressure is normal then kindly check for yourself if you any difficulty with your vision. Common cause of headache is sinusitis
.. If you can eloborate your symptoms i would be very happy to help you.
I wish you speedy recovery and best health...