Keep up with the ice, self massage with the tennis ball and do some light stretching for your chest, shoulders, rotator cuff, triceps and biceps.
Try a few of these sort of things as well with a theraband.
Also, try doing shoulder external rotation and internal rotation using the theraband with your shoulder abducted at 90 degrees and your elbow at 90
Just gauge where you're at in terms of discomfort with those type of movements and see if you can gradually work back into your workout without pain.
If its still bothering you, go see someone about it.