Hi
I paddle with Abreast In A Boat and we have a complementary fitness program (which includes weight lifting) we are supposed to do (some do some don't) This program was initiated by Dr. Don MacKenzie for Breast Cancer survivors. He does recommend compression sleeves for those who may experience some lymphodemia and some of the women will wear them. The oncologist I see has also started a trial study for women who are going through chemo to see if exercise helps them to cope better as well as another study for those of us on Arimidex to see if exercise will mitigate some of the side effects.
I don't think I have ever been more fit and though I experience side effects from Arimidex, they do not worsen from exercise and emotionally I think I am better off. Take care as you would starting on any exerice program and good for you for getting out there. You might want to see if there is a paddling program in your community.