Hi, Thanks for writing in. It is important to know at what stage cancer cervix was detected in your mother and what treatment she is taking for it. Cancer cervix is a disease that occurs due to uncontrolled proliferation of cells in the cervix of uterus. It is important to know if she has early stage cancer or a later stage. Treatment differs as surgery is best for complete treatment at early stages and chemotherapy and radiation therapy can prolong survival in those with late stage disease. Vomiting and weakness can be treated with maintaining a proper diet and also correcting any deficiencies like anemia. During treatment, patients are known to have anemia and reactions to medicines. This needs to be carefully evaluated and if required regular anti vomiting medicines need to be taken. Please take measures to improve her diet and give her small frequent meals of her choice. Scattered rales in lungs need to be evaluated by doing a chest X ray. If the lungs are clear then no treatment required for it. Please do not worry.