My hubby was diagnosed with prostate cancer in its early stages, he underwent radio therapy for six weeks, between April 2012 and August the same year. He never experienced serious side effects while on treatment except lack of sleep, sweat and feeling tired all the time, which he still does to date and sometimes hard stool . He is now experiencing blood in the stool every time he goes to the loo and sometimes feels passes on soft stool with blood. Is this normal after Radio?