Numbness and tingling arms

So I have been getting CTS with this pregnancy, and I am managing it pretty well with my wristband; however, I am starting to get numbness and tingling on one side of my arm towards my fingers when I lay on my side. I've tried everything, even slightly elevating my opposite side so that I'm not lying flat on my back completely. She's already keeping me up with constant movement if I'm not positioned comfortably for her; now, my shoulder is keeping me up as well. I think I'm pinching one of my nerves.

Any moms that have dealt with this, what helped you?