I was recently diagnosed with Shoulder Impingement, and was told to take two weeks off from training. The doctor gave me a cortisone injection and said I should be fine after the two weeks. Since then, I have had minimal pain, but during lateral motions during swimming and upper body workouts, there is a consistent double popping in the shoulder and I am not exactly sure what this is indicating, nor am I sure what I should do about it. It has gotten worse lately so I am putting training on hiatus for a weeks to see if it helps. Does anyone know what this might be and what I can do to fix it and prevent it from occurring again?