The other day i was at work and i noticed a different pain in the front of my shoulder. it popped about 5 time?

it popped about 5 times the other day all in a row and then began to hurt pretty bad. i been icing it and its gotten better but its not back to normal yet. its been about 3 days since it happened. i really dont want to go to the doctor so im hoping its just a muscle or something. the only time i feel the twinge is when im making a turning movement with my arm like when your opening a bottle or can of something that truns.. or when i make a quick movement with my arm. any ideas or imput would be appreciated.