Hi my husband has just finished chemotherapy and radiotherapy for sclc, (cancer was inbetween his lymph nodes) we haven’t had the report of the scan yet but the oncologist seems to think it’s worked and the small bit we can still see on the xray is scarring, my husband has ended up with a damaged heart due to the chemotherapy which has caused tia and it’s only working at 25% now, so we are now concentrating on his heart, but he’s starting to suffer with back ache again , could this mean the cancer has spread or could it be down to the problems with his heart?