Mum is 72 and was diagnoised with breast cancer stage 4 in September 07. She is undergoing on 2nd line 2nd cycle chemo but has encoutered a lot of problems including hospitalisation for 8 days with mucositus, delaying chemo for 2 months and with the 2nd cycle, again mild mucositus treated with antibiotics but is now bleeding when she urinates. What is going wrong?