Hi iv been getting pain down my left arm for bout 5 yrs now also my neck and my shoulder blade is always sore and to touch it hurts also iv had a X-ray done came back wear and tear also I had a blood test done it came bk that I had a inflammation in my body I asked my gp he said it could be sign of arthritis but never gave me any thing for it if I carry anything in my left arm it get weak and shakes would u have any advice please