What Causes Popping Sound In Bicep Along With Shooting Pain In Arm?

I had surgery to repair a torn rotator cuff , I/16/15. this was my right shoulder. This Sunday, 3/22/15, I was brushing my hair. Suddenly, I heard and felt a loud pop in my bicep, and experienced an extreme shooting pain in my arm. This was severe pain! Today, 3/25/15, I wake up and my bicep has bruises on it. Throughout the day the bruising has has gotten worse. The bruising is spreading on my bicep and now has moved to my elbow. What do you think is going on??????