Hi, I understand your concern and I ll try to help you. From what you reported the health condition of your father is not good. The combination of congestive heart failure, renal failure and age 85 years brings a very high risk and very briefly of death. The CHF has varying degrees of severity, from mild to severe and also has several causes. The life expectancy for patients with CHF depends both on the severity, the cause of the loss of contractility of the heart muscle. When the degree of cardiac dysfunction is light, the life expectancy of patients can reach decades if kept in optimal medical treatment. However, when CHF is severe, patients usually do not live more than a year. Moreover, CHF causes loss of function of other organs such as the lungs, liver and kidneys. In case your father, you described renal failure and when this occurs, the life expectancy falls to a few months. Loss of appetite, diarrhea and excessive sleepiness are very worrying, since they indicate the possibility of failure of multiple organs. The multiple organ failure is not compatible with life and patients at this stage live hours or a few days, rarely surviving weeks. In this situation, it is important that you take your father to the emergency room to stage the degree of loss of multiple organ function. On the other hand, it is important to understand that your father is living the last years of his life and the family needs to prepare for the completion of the life cycle. I wish the clinical condition of ypour father stabilizes. I hope I answered your questions, and I m available for new ones.