Diagnosed Npc, Done Chemo. Ruled Out Cancer. Nasal Bleeding, Headache, Breathing Difficulty. Cancer Symptoms?

hai doctor one of my friend was diagnosed npc and done chemo , later doctor told there is no cancer with her , but she get her nasal bleeding and headache and consulted another doctor and done surgery in her right side now bleeding etc are stopped but she feel dizzy and breathing difficulty , and to day also she got dizzy , breathlessness , and 4 days back she got a painful lumb above clavicle and it disappeared itself after four days , do you think she had cancer