Everyday i wake up with a stiff, tight neck and a sore area on the upper right side of the back of my head. the area doesn't hurt, it just feels dull, achy, and sore to the touch. the neck stiffness lasts all day. any ideas?

This sounds most likely the pain is due to your position during sleep. You might want to try a different pillow and/or change from back sleeping to side or from sleeping on right side to left. Do you work on a computer all day? Consider if you are sitting in the best position, since this may be an overuse injury to your right arm/shoulder. Consider physical therapy or massage therapy