The area above your collarbone is hit directly. This bruises nerves. You'll have a burning or stinging feeling between your neck and shoulder, and probably in your arm. Your shoulder and arm may feel numb, tingly or weak. Your doctor will ask questions and examine you.
Burners happen in only one arm at a time.
If both of your arms or one arm and a leg are hurt, you may have a serious neck injury, not a burner. Your doctor will then protect your neck and get x-rays. Burners get better on their own. You may need physical therapy to stretch and strengthen your muscles. Some burners last a few minutes.