I am awaiting radiotherapy, currently 8 weeks after left breast mammoplasty and full axilla removal.  I have started Tamoxifen, 2 weeks ago and returned to work 3 weeks ago.  I am experiencing arm pain/ strain in my non cancerous side in addition to lymph fluid swelling at times on my left side. I continue to do my exercises which help me move the fluid around and my scars are healing.

Obviously I have been using my arms more as I am a teacher and returning to work full time is a change in my recovery. Should I be concerned at arm/ shoulder strain in my non cancerous side or is it just because I am overcompensating for my operated left side?

I welcome any advice.