Re: Pain in Left Shoulder when waking up, and black & blue knuckles on right hand...
Hi J, I have a similar problem, for a few months now. My shoulder on my right side aches at night and worse when I first get up in the morning. After a while, my middle knuckles and underside of the fingertips turn blue...also on the right side. Just recently it started getting a little worse, my arms ache too. It feels muscular in the arms. Have you had any luck finding out what is going on?