Why does the back of my head hurt so much

- Why does the back of my head hurt so much when i wake up
- Why does the back of my head hurt so much when i cough
- Why does the lower back of my head hurt so much
- Why does the back right of my head hurt so much
- Why does the back of my head and neck hurt so much
- Why does the back left side of my head hurt so much
- Why the back of my head hurt so much
- Why dies the back of my head hurt so much
- Back of head pain