Have had a BAD pain and aching on Right Back Side for 6 days. Now it hurts to band over pick up stuff, stretch upward , sideways, just terrible aching. Had Breast Caner in 2004 so Radiation last 5 days on that right side of back, but don't now if that has any matter of it. Thought it was a muscle pull, but hot showers and pain creams and it comes right back. have been on a walker a while and cane because of right knee and thought maybe just too much stress on that back side because muscles affected after radiation, but just don't know now. Going to DR. tomorrow, just wondering though!