Circulation in arm and hand poor - any idea why?

Any idea why my shoulder arm joint (the one with Breast cancer) would be feeling a bit dead? The circulation in thesame hand also a bit poor.

I did have scolosis (curvature of the spine) in my youth, aged 12 and ths side was affected, but no problems since then.

E

I developed numbness down one side of my right hand, which I though was a side effect of the bc treatment. When it didn’t go away, I went to my GP who diagnosed a trapped nerve. The only thing you can do is take it to a doctor and ask. You never know, he might be able to do something about it.
Lynn