ache in muscle over shoulder blade
for about 2 weeks I have had an intermittent, but increasingly more frequent numbing/burning ache in the muscle between my left shoulder and my shoulder blade.
It is relieved if I keep my back straight but hyper extend my neck forward (as though my shoulders were pinned back but I am craning forward to see something).
It doesn’t stop me from doing any activity, including yoga or pilates, and doesn’t interfere with sleep. Rarely it radiates slightly down the arm. No other associated aches or pains.
Is this some kind of nerve entrapment–can I exercise or stretch out of it?