Thanks for your question on Health Care Magic. I can understand your concern. Since, she is having cancer in liver, lungs and bowel,she is having stage 4 malignancy (terminal stage illness). So only palliative treatment in the form of pain management and nutritional support are advisable. Excessive sleepiness can be due to brain metastasis. But we can not do anything for this. In my opinion, she is having life expectancy of less than 4-5 months. So better to discuss end of life issues with her. Hope I have solved your query. Wishing her good health. Thanks.