Hi,
How are you?
Your symptoms are suggestive of nerve compression. It can be at the level of the shoulder or the neck.
Pins and needles in your lower and upper back also suggest nerve compression at the level of the neck as well the lower back.
A Ct scan or an MRI will help in diagnosis. The pain in shoulder could be due to rotator cuff injury like you have mentioned. Other cause can be shoulder dislocation.
Please consult an orthopedic specialist. Do keep us posted!
sorry about the typos, but my numbness makes typing pretty tough these days.
if you find a solution, please please please email me, because i have experienced the same thing for several years now, with same types of treatment, and answers from doctor, and now my hands are numb all the time, I am trying holoistic meds now, becauese I am beside myself with pain and frustration!!!!! I think the problem is actually in my neck, but they always want to treat my shoulder! I did find an article vistamagonline.com that seems pertinent and I am taking it to my doctor. It discussed some kind of "35 points of pressure that need systematic release". I figure it's work a try.