What Causes Persistent Headaches?

For the last week, i have had these headaches, that would start when i wake up and i would have it until i go to bed. I figured it was because i wasn t wearing my glasses ( that i only need for comp, reading etc), while using the computer at work.. its not because i still continue to get them, i also am starting to get this strangest sensation my ear is bleeding, but it s NOT. It happens suddenly & sporadically. Not 1 drop of blood. Doesn t feel like water in ear, it actually feels like it is about to bleed out. other than this, i have NO other head, nose, throat problems. I have no clogging, no sinuses, allergies or anything, I have been to the walk-in clinic and they gave me a sinus spray to use to drain, but it hasn t really done anything for me.. I also get this feeling along the back of my throat as well. Headaches have lessened a little bit but not much.