I have head and neck pain on the right side. it also hurts when i lay on the right side.?

Go left!: It may be that there is a degenerative spur or small joint (facet) issue or even a disc problem that can be the cause of your pain that is aggravated by position. If it is troublesome for you, get it checked.

Neck arthritis: There are several joints and intervertebral discs in the neck. These can wear out over time leading to pain. Degeneration of the joints or discs can cause neck pain, headaches, and/or shoulder pain.