Disclaimer: This tool is for information purposes only and provides only an approximate guide as to what may be wrong with your joints. It should not be used instead of seeking professional medical advice or diagnosis. If you are experiencing shoulder pain while sleeping, shoulder pain while exercising, sharp shoulder pain with overhead movement, or feeling instability, etc. Below are injuries that are common causes for shoulder pain, but it is best to gain a better understanding of your injury by entering your symptoms into our Shoulder Pain Diagnosis Symptom Checker and read Dr.