After DCIS lumpectomy, seroma, and radiation, is it safe to do rehab?

I went to chemo for a year. I can't remember how many times a month. My brain is foggy of those times. My daughter came and stayed with me for 2 months at first. I lost my hair and it came back much better than ever. I had cancer in 3 lymph nodes and that's why I had chemo for so long, according to my oncologist.. I went to radiation every day except weekends for 6 weeks.
I was at stage 2 because of the lymph node involvement. I had a lumpectomy.
Chemo cause neuropathy in my feet and I can no longer drive. I live alone out on 22 acres in the country in Coastal Ca.. My kids bring me groceries and take care of things needed on the property.
I didn't want to take AL's and so I didn't. I recently saw my oncologist who looked at my blood work and said he didn't expect my cancer to come back.
Radiation was a snap and I had no problems during or after with it.
People tell me I am young for being 82. Life is good and still exciting! I recently spent 3 weeks with my grade school boyfriend in Texas. Yippee!

I also had a recent lumpectomy for DCIS and am currently going through 5 rounds of radiation and so far so good. Getting an ultrasound as likely a small seroma was seen on the CT simulation. Doctor is sure it’s nothing to worry about but having it checked out. The actual treatment is quite quick and no issues with skin. I did 24 rounds in 2002 on the other breast and also had no skin issues. I think radiation is manageable.