Does the pain occur at the same time each day?

The pain occurs the moment you step out of bed.

We're some way off that yet, and more pain will occur.

The pain does not occur more often or get worse over time.

The pain also may occur when the person stands up after sitting for a period of time.

Sometimes pain occurs when something goes wrong with the central nervous system.

The pain can also occur in the jaw or arm, usually on the left side.

E: Environment where the pain occurs, for example, while working or at home.

This pain occurs because your heart is not getting enough blood and oxygen.

As a result, inflammation and pain occur at the site.