I've been having some shoulder pain and popping and cracking for a few months now, along with upper back pain
and occasional finger numbness
. The popping is generally when I lift my arm
over my head. The front of my shoulder (where it meets the arm) is always sore, and I generally have pain under my shoulder blade.
Last night, I felt it popping, then again, and shoulder and most of my hand and wrist went mostly numb.