Why are my eyes so dry, yellow where my whites are exposed to sun and I feel like my eye sockets are just throbbing causing headaches everyday?

Needs evaluation. Dry eye is a relatively common patient complaint. In most patients it is the result of where you live. In other cases it can be the result of heredity, eye injury, previous surgery (esp LASIK), or an illness such as Sjogren's syndrome. I would try preservative-free artificial tears up to 8x/day, take omega-3 fatty acids, and if persistent would go see your eye doctor.