Kimmy, from what I know it doesn't go away on its own.
You either live with it or get a small surgery. It is usually caused by repeated movement of a particular part of the body. It can affect either the sheaths around tendons which then swell and press on nerves.
If its in the wrist (Carpal Tunnel syndrome) you usually feel a pain and tingling in the thumb and first two fingers. You also might find that your grip and muscles are becoming weaker. That one I know can be fixed with surgery and it is very common. Also changing your posture .... anti-inflammatory, massagee and a wrist aid sometimes help.
People don't always know, but it can also affect other parts of the body like the shoulder (rotator cuff injury), the tendon in the elbow (tennis elbow) and the back too.
Go see your doctor if you think you have that. HE/she should be able to help.... welll ... eventually.....