Can you describe your headache a little more? Front, back, sides?
Is this a new headache for you?
Have you had your doctor evaluate this?
Is this only related to reading?
Or do you have other activities that worsen the headache?
And has your doctor evaluated this?
At this point, it probably would be best to be referred to and evaluated by a neurologist, the specialist that deals with headaches.
They may even want to consider imaging of the brain, as you have had these persistent morning headaches as well.
Unfortunately, it does not appear that the issue is with your vision, or problems with focusing, so further evaluation is necessary.