cording?? and swoen lymph node

I was diagnosed with stage 1 bc 6/08.  I had a lump. and 3 lymph nodes removed.  I did 4 treatements of chemo+herceptin then finished the year of herceptin in 7/09.  I see my onc every 4 months.  Last visit was end of nov.  He does bood work and tumor markers a which came back normal. ast month i started having a pain in my shoulder and was told it was a pinched nerve.  Then the pain went down my arm to my elbow then my wrist.  Then i noticed some swelling under my arm and then i noticed a cord running from a swollen lymph node thru the arm pit...but it fees like some one is pulling it all the way down my arm.  
So i called the dr and went in for a mammo.  Then the dr that read it did an u/s cause of a enlarged lymph node.  He said it worried him...
Now i am worried, i see my onc on Wed. but am freaking out.  Could the cording cause the enlarged lymph npde and swelling??  or does it sound like it could be cancer??

[ninerugrats]

My L's stick.....sorry about all the typos :)

[japdip]

It certainly sounds like "cording" from the decsription but I'm not sure about the lymphnode. This could be connected and "cording" usually goes away in a few weeks or maybe even sooner. If the swelling is beyond the axillary area it could also be a Lymphedema issue. You are wise to see your Oncologist about this but I wouldn't get too "freaked out" just yet. The pinched nerve association with the pain is certainly possible too.    Regards ....