Splitting/popping internal sutures 4 weeks post breast augmentation

I am 4 weeks post op. I was just laying down with my daughter in her bed, and was attempting to lay on my side, with my arm bent behind my head. There were numerous popping sensations, along with pain along the bottom of my breast (by the incision). You can now feel the implant and tiny bumps (I'm assuming broken sutures), and I'm having pain, especially when I move my arm. It's a Sunday. Do I call my surgeon? Wait? Everything looks okay, but it feels different and I am mild having pain.